Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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11. a baker has already made 10 cakes. she can make the same number of …
The graph is a straight line segment. It starts at the point \((0, 10)\) (on the \(y\) - axis, since at time \(x = 0\) hours, the number of cakes \(y=10\)) and extends to the poin…
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8. the seven dwarves hop into a railroad car and drive 990 km in 9.5 ho…
The time spent traveling through the railway tunnels is 4 hours.
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harita must memorize 90 measures of music for her cello solo at a conce…
$m = 90 - 6d$ (the second option)
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the sugar sweet company is going to transport its sugar to market. it w…
The total cost of transporting 15 tons is \(\$6125\). ### Part (b)
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8. aaron’s mother drives to the gas station and fills up her tank. then…
The graph has three phases: 1) Decreasing line (driving to gas station), 2) Steeply increasing line (filling tank), 3) Decreasing line (driving to market), with the second phase's…
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decimals and percents computing unit prices to find the better buy josh…
Unit price for the Brand A pencils: $\$0.24$ for each pencil Unit price for the Brand B pencils: $\$0.21$ for each pencil The better buy: Brand B
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a certain brand of coffee comes in two sizes. a 10.5-ounce package cost…
Unit price for the 10.5-ounce package: $\$0.31$ per ounce Unit price for the 30.6-ounce package: $\$0.32$ per ounce The better buy: The 10.5-ounce package
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darryl just received his credit scores from the three major credit bure…
d. 747
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$10 earns $0.40 in interest. what is the percent interest?
The percent interest is $4\%$.
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9. melody starts at her house and rides her bike for 10 minutes to a fr…
The graph should have two segments: 1. A line with a positive slope from \((0, 0)\) to \((10, d)\) (where \(d>0\), representing the ride to the friend's house). 2. A horizontal li…
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sophie did an anyonymous survey and collected her friends credit scores…
a. 698
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noah picked 3 kg of cherries. mai picked half as many cherries as noah.…
C) $\boldsymbol{(1 + \frac{1}{2}) \cdot 3}$
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a phone keeps track of the number of steps taken and the distance trave…
There \(\boldsymbol{\text{is not}}\) a proportional relationship because there \(\boldsymbol{\text{is not}}\) a constant of proportionality.
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zoe starts with 15 dollars in her account. she earns 10 dollars per hou…
Zoe started with $15 in her account and Chloe started with -$20 in her account.
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7. when a new laptop became available in a store, the number sold in th…
The graph should have the following characteristics: - At \(x = 1\), a high - valued point on the y - axis (sales). - A decreasing line from \(x = 1\) to \(x = 3\). - A horizontal…
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75% of 80?
60
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zoe starts with 15 dollars in her account. she earns 10 dollars per hou…
They both earn $10 per hour.
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lesson 25 review - solving rational equations ③ \\(\\frac{x}{x - 2} - \…
A. there is no solution to the original equation.
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zoe starts with 15 dollars in her account. she earns 10 dollars per hou…
Zoe: $d = 15+10x$ Chloe: $d=-20 + 10x$
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lesson 25 review - solving rational equations ③ \\(\\frac{x}{x - 2} - \…
The option "cannot be equal to" (the second option in the multiple - choice question).
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eric is comparing the credit scores of his friends. the scores he gathe…
b. The mean is 1 point higher than the median.
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eva bought a new hybrid car. the first time she filled the tank, she ha…
C. 50 mpg (assuming the options are labeled A, B, C, D with C being 50 mpg; if the original labels are different, adjust the identifier but keep the text "50 mpg")
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find the constant of proportionality. x | y 2 | 8 3 | 12 4 | 16
The constant of proportionality is \( 4 \).
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which ratios are equivalent to the ratio \\(\\frac{120 \\text{ applicat…
A. \(\frac{60 \text{ applications}}{18 \text{ openings}}\) B. \(\frac{30 \text{ applications}}{9 \text{ openings}}\) D. \(\frac{10 \text{ applications}}{3 \text{ openings}}\)
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nate starts with 5 dollars in his account. he earns 10 dollars per hour…
The slope of Nate's line is 10. The slope of Tamia's line is 10.
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7. lupe is making cupcakes to raise money for a project at the communit…
60 ### Problem 8a
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30. the graph shows the total distance, in feet, traveled by a person a…
The average rate of change is \( 0.2 \) feet per second.
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12. what is 2,220 yards in miles? round to the nearest tenth of a mile.…
\(1.3\) miles
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tony is a loan officer. he determines his clients’ eligibility for loan…
b. Neil has the highest mean score, but Jeff has the highest median score.
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finding rate of change from a graph an indoor trampoline park has an ad…
\(4.5\)
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6. the 40 tiles shown at the right were put into a sack, and the sack w…
a. As a fraction: $\frac{36}{40}$; As a fraction in lowest terms: $\frac{9}{10}$; As a percent: $90\%$; As a decimal: $0.9$. b. (Assuming the segment is from 0% to 100%, place X n…
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lesson 2.5 review - solving rational equations lcd = (x + 4)(x - 2) ③ \…
A. \(x(x + 4)-2(x - 2)=12\) (assuming the first option is labeled A, with the equation \(x(x + 4)-2(x - 2)=12\))
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xavier is comparing the credit scores of people in his neighborhood. he…
A. 776
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feeling overwhelmed with monthly bills, lin got a second job to help pa…
D. Lin should contact a credit counselor to create a workable debt management plan.
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what answer choice describes economic specialization? a. an economy in …
C. An economy in which producers produce the goods they can create most efficiently and trade for others
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question the dot plot below represents how long it takes students in an…
20 minutes
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name renia - 6th - 4.4b solving percent problems practice - score 1. fi…
1. 12 2. 35 3. 9 4. 12.5 5. 21 6. 84 7. 35.2 inches 8. 90 9. 36 10. 20 11. 20 12. 24 13. a. \( \approx 2.22 \) (or \( \frac{22}{9} \approx 2.222 \)) ; b. \( \approx 222.22\% \) 14…
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5. there were 4 roses for every 6 daisies in a bouquet of flowers. a. w…
\( 40\% \) ### 5b.
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two athletes are training for a cycling race. each athlete recorded the…
(a) Both (if option, but likely the plot shows same minimum, but maybe the answer is Both. But if options are Athlete A, Athlete B, Both: then Both. But maybe I made a mistake. Wa…
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which rate represents 400 compliments for every 850 reviews? 4 complime…
8 compliments/17 reviews (the second option: 8 compliments over 17 reviews)
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a motorcycle’s odometer read 14,331 miles at the start of a trip. five …
25 mph
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fifteen cyclists were each asked the number of miles they biked last we…
For part (a), the frequencies are: 1 to 5: 1 6 to 10: 3 11 to 15: 7 16 to 20: 4 (For part (b), the histogram would have bars with heights 1, 3, 7, 4 for the respective classes.)
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what is 6 months to 5 years expressed as a ratio? 5:6 1:2 1:10 6:5
C. \(1:10\) (assuming the options are labeled A, B, C, D with C being \(1:10\))
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math class: answer each question below using equivalent fractions but w…
$60\%$ ### Problem 2:
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lesson 11 exit ticket - i can solve story problems by drawing and reaso…
Andre scored 14 points.
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9. a scale model of an aircraft carrier uses a scale in which 1 inch re…
The length of the beam on the scale model is $0.4$ inches.
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8. consider the squares shown. square g has an area of 100 square centi…
36%
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final exam - practice 1. frequency distribution table a survey was give…
1) \( a = \boldsymbol{11} \) 2) \( b = \boldsymbol{15} \) 3) \( c = \boldsymbol{153} \) 4) \( d = \boldsymbol{0.655} \) 5) \(\boldsymbol{40}\) 6) \(\boldsymbol{54.2\%}\) 7) \( a =…
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7 in this story, the word scale means something that ____. a measures w…
A. measures weight
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the data points show the amount y (in milligrams) of a radioactive subs…
Figure 2 ### Part (b)
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3.82 × 0.51 7.56 ÷ 0.9 18 - 3.584
\( 3.82 \times 0.51 = 1.9482 \), \( 7.56 \div 0.9 = 8.4 \), \( 18 - 3.584 = 14.416 \)
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two athletes are training for a cycling race. each athlete recorded the…
Athlete A ### Part (b)
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7 the word absorb means ____. a repeat c give out b soak up d bounce off
B. soak up
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here are the hottest recorded temperatures (in °f) for each of sixteen …
(a) | Temperatures (in °F) | Frequency | |----------------------|-----------| | 93 to 96 | 3 | | 97 to 100 | 1 | | 101 to 104 | 4 | | 105 to 108 | 4 | | 109 to 112 | 4 | (b) For t…
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2. a 26-pound gummy python is priced at $149.99, in halifax, nova scoti…
The total price is \(\$172.49\) (or \(\$172.4885\) before rounding). ### Part 3a (Winter Boots in April)
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the test scores of the students in four classes are summarized below. a…
C. Class C ### Part (b)
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the salaries of the employees at four companies are summarized below. a…
Company A ### Part (b)
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problems 5 - 8: factor each of the following completely. notice that th…
\(x = 0\) or \(x=-\frac{1}{2}\)
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matias dreams of opening a food truck business. he needs to borrow $10,…
Matias forgot to include the principal (\$10,000) in his calculation. The correct total amount he owes the bank is \$11,299 (calculated as \$10,000 (principal) + \$1,200 (interest…
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5. william took his three kids to get haircuts. the haircuts cost $57.5…
The total cost, including tip, is $70.15.
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data analysis and probability using box-and-whisker plots to compare da…
(a) Athlete A (b) Athlete B (c) both had the same IQR (d) Athlete B
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matias needs to know how much he will owe the bank after one year. expl…
Matias forgot to include the principal (\$10,000) in the total amount owed. The total amount owed to the bank is the principal plus the interest and the fee, so it should be \$10,…
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3. what does the term \odious\ most closely mean as used in paragraph 8…
A. Hateful
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effective listening total matched: 0 of 4. group a paraphrasing clarify…
- Paraphrasing: So, you're saying that while you were feeling nervous about the new... - Clarifying: Let me just check that I understand what you meant by... - Reflecting: If I am…
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4. amir used a coupon to buy new shoes. the original cost of the shoes …
The coupon took off \( 30\% \) of the original price.
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data analysis and probability using box-and-whisker plots to compare da…
(a) Class A (b) Class A (c) Class B (d) Class B
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#15 it takes six ounces of ground coffee beans to brew a whole pot. how…
32
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for each scenario below, choose the best graph. (a) rita stays in new y…
(a) The third graph (with horizontal line) for Rita's scenario. (b) The first graph (with negative slope, speed decreasing over time) for Keiko's scenario. Wait, but the original …
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for each scenario below, choose the best graph. (a) rita stays in new y…
The fourth graph (Rita's Distance to Texas vs Time with a horizontal line) ### Part (b)
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carsons car used 3 gallons of gas to drive 60 miles. fill out a table o…
For 1 gallon: 20 miles; For 80 miles: 4 gallons
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the double number line shows the price of 1 cupcake. cupcakes: 0, 1 pri…
For 5 cupcakes, price is \( 7.5 \); for $18, number of cupcakes is \( 12 \); for 18 cupcakes, price is \( 27 \). So the table entries (from top to bottom) are \( 7.5 \), \( 12 \),…
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which table represents the rate at which the bakery uses butter? choose…
A. Days | Butter (kg) 5 | 100 7 | 140 30 | 600
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1. at the movies, you ordered 5 bags of popcorn and paid $37.50. what i…
\$7.50
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zahra walked 5 miles in 2 hours. fill out a table of equivalent ratios …
For the table: - When hours = 12, miles = 30. - When miles = 40, hours = 16.
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the double number line shows the amount of time a hen needs to lay 1 eg…
For 3 eggs: 0.75 hours For 100 hours: 400 eggs For 12 eggs: 3 hours (In table form, the filled values would be: Eggs: 3, Time: 0.75 Eggs: 400, Time: 100 Eggs: 12, Time: 3)
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nuka is weaving beaded strips. the double number line shows that they c…
8.75
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the double number line shows that faye can sort 150 recyclable items in…
200
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xochitl walked 8 miles in 4 hours. fill out a table of equivalent ratio…
For the first empty cell (hours when miles = 2): 1; For the second empty cell (miles when hours = 3): 6
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10 customers entered a store over the course of 5 minutes. fill out a t…
For the first blank (Minutes when Customers = 2): 1 For the second blank (Customers when Minutes = 3): 6
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the double number line shows that 4 kilograms of almonds cost $34. almo…
42.5
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nora walked 9 miles in 3 hours. fill out a table of equivalent ratios a…
For the first empty cell (Hours when Miles = 3): 1; For the second empty cell (Miles when Hours = 2): 6
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the first four terms of a sequence are shown on the graph. (0, 1) (1, 4…
a) The sequence is Geometric because it has a common ratio of \( 4 \).
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4. he takes 22 minutes to walk the first mile. if he continues at this …
110 minutes
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3. his rucksack has a total mass of 25 pounds. translate this amount to…
11
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bo drove 200 miles in 4 hours. fill out a table of equivalent ratios an…
For 1 hour: 50 miles; For 500 miles: 10 hours
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2. he drinks 5 litres of water each day of a 4 day hike. write this amo…
42
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directions: drag each expression to the correct location in the table. …
For \((9 \times 10^{5})+(6 \times 10^{6})\), the equivalent expression is \(6.9 \times 10^{6}\). For \(\frac{6 \times 10^{4}}{3 \times 10^{-1}}\), the equivalent expression is \(2…
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33. a preschool field trip required 7 buses. thirteen children rode in …
35
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in the cylinder. remember, x represents the number of marbles. solve on…
13
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brianna read 3 books in 15 months. fill out a table of equivalent ratio…
For 5 months: 1 book; For 6 books: 30 months
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fill in the blanks below. (a) the temperature was 15 degrees below 0 (i…
(a) \(-15\) (b) \(-1760\)
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which shows the expression below in simplified form? $(8 \\times 10^4) …
B. \(5.6\times 10^{3}\)
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fill in the blanks below. (a) the population of a certain city increase…
(a) 40000 (or +40000) (b) - 6
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assignment in progress for 2025 p.7. s. 107. dev la 1 esol courseno. 10…
A. content that is intended to disguise the truth
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30. lewis hamilton completes a grand prix in 1 hour and 40 minutes at a…
300 kilometres
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sydney bought 18 bananas for $9. fill out a table of equivalent ratios …
For the first blank (2 bananas): 1 dollar; For the second blank (4 dollars): 8 bananas
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7. a 180-pound person burns about 88.5 calories every 15 minutes while …
$c = 5.9t$
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29. sarah cycles at an average speed of 24 kilometres per hour. how far…
8 kilometres
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which shows the expression below simplified? $(8 \\times 10^5) \\times …
B. \(4\times10^{2}\)
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28. translate gary’s speed of 24 kilometres per hour as a speed in metr…
\(\frac{20}{3}\) (or approximately \(6.67\)) metres per second