Statistics & Probability
Data analysis, probability distributions, hypothesis testing, and statistical methods.
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is im2a unit 5 task 22 3. simplify \\(\\frac{6!}{4!}\\) = enter your ne…
30
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describe how the values of a and b in the linear model y = ax + b are r…
First blank: slope; Second blank: y - intercept
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2b if italian is one of the languages they can choose from, what is the…
\(\frac{1}{6}\)
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2. a student is choosing two units to study at university: a language a…
$\frac{1}{6}$
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two quantities of data have a strong positive correlation. can the line…
D. No. By definition, data that have a strong positive correlation have a strong linear relationship. The correlation coefficient would be closer to 1 than 0.25 is.
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1. an individual is chosen from the group. according to the venn diagra…
\(\frac{9}{19}\)
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mr. fielding has requested that all data in the science project spreads…
B. 234.1
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1. an individual is chosen from the group. according to the venn diagra…
\(\frac{19}{28}\)
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7 this venn diagram shows the results of a survey identifying what colo…
\(\frac{2}{3}\)
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6. a standard six - sided die is rolled. 6a list all the even numbers t…
\(\frac{5}{6}\)
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6. a standard six-sided die is rolled. 6a list all the even numbers tha…
2, 3, 5
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(a) draw a scatter plot of the data. (b) find the equation of the line,…
\( y = 0.3x - 0.1 \)
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which column shown is sorted numerically? figure: a chart with columns …
B. Column B
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3. from a set of 10 cards numbered 1 to 10, two cards are drawn at rand…
\(\frac{4}{45}\)
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3. from a set of 10 cards numbered 1 to 10, two cards are drawn at rand…
\(\frac{2}{9}\)
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estimate 735,450 and 4,330 to the nearest thousand and find the differe…
Seven hundred thirty - one thousand
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2. a coin is tossed twice. 2c use the tree diagram to find the probabil…
$\frac{1}{2}$
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2 a coin is tossed twice. 2b use the tree diagram to find the probabili…
$\frac{1}{4}$
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2. a coin is tossed twice. 2b use the tree diagram to find the probabil…
\(\frac{1}{2}\)
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for the below, complete the chart by clicking the appropriate answer in…
- For \((2,3),(3,4),(4,5),(4,6)\): Not a Function - For \((3,6),(4,7),(5,8),(6,9)\): Function - For \((4,1),(4,2),(4,3),(4,4)\): Not a Function
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marysville purchased new textbooks for its three elementary schools. ab…
About 2,000 textbooks (the option: About 2,000 textbooks)
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2. a coin is tossed twice. 2a construct a tree diagram showing the resu…
\(\frac{1}{2}\)
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part a which expression best describes the model below? image of green …
D. \(3\times144\) (assuming the options are labeled A - D with D being \(3\times144\)) ### Part B
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jacob has 3 times as many football cards as eli. eli has 39 football ca…
B. Jacob has 6 more cards than Tara. (Assuming the options are labeled A, B, C, D with A: Jacob has 72 more, B: Jacob has 6 more, C: Tara has 72 more, D: Tara has 6 more) Wait, ba…
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1. an archer makes two attempts to hit a target, and the probability th…
A. \(\frac{36}{49}\)
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in exercises 1–6, translate the given statement into an algebraic inequ…
### Problem 7: Solve \( 3x > -6 \) algebraically and graphically #### Algebraic Solution: # Explanation: ## Step 1: Isolate \( x \) To solve for \( x \), divide both sides of the …
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which model is the best? linear vs exponential the data below shows the…
The Linear Regression Equation is \( \hat{y}=10x + 40 \) (where \( x \) is the number of weeks passed and \( \hat{y} \) is the predicted number of birds)
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d. 15 60. carolyn buys flour for 16 cents per ounce and sugar for 24 ce…
B. 5 ounces ### Problem 61:
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rrp.sklbldr1 mid-unit re math 8: skillbuilder # 5.1 1. write each perce…
s: a) Fraction: \(\boldsymbol{\frac{3}{5}}\), Decimal: \(\boldsymbol{0.6}\) b) Fraction: \(\boldsymbol{\frac{39}{400}}\), Decimal: \(\boldsymbol{0.0975}\) c) Fraction: \(\boldsymb…
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40 lydia and kaden measure the speed of the wind for an experiment in t…
5
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finding the total amount after discount use the diagram to help you sol…
Motorized train discounted price: $5.99 Doll house discounted price: $7.79 Building blocks discounted price: $3.41
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the tragedy of hamlet, prince of denmark ct iii. scene i. a room in the…
The option "Look at this computer tablet to highlight that you are all alone" (the bottom - most option with the purple border)
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3. the growth of a special bamboo plant from mars is modeled above. sci…
\( y \approx 363.21x - 247.64 \), \( r \approx 0.92 \) ### Part (b)
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the tragedy of hamlet, prince of denmark act iii. scene i. a room in th…
The actor playing Hamlet speaks slowly and deliberately, weighing the meaning of every word as he goes along.
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what percentage of the shape is pink? write your answer using a percent…
70%
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the tragedy of hamlet, prince of denmark act iii. scene i. a room in th…
heartache
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the tragedy of hamlet, prince of denmark act iii. scene i. a room in th…
He is contemplating suicide.
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the tragedy of hamlet, prince of denmark act iii. scene i. a room in th…
undiscover'd country
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the tragedy of hamlet, prince of denmark act iii, scene i. a room in th…
cowards
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what percentage of the shape is purple? write your answer using a perce…
18%
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act iii. scene i. a room in the castle. enter claudius, gertrude, polon…
The option: "These choices emphasize the fact that Hamlet is considering taking his own life."
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the tragedy of hamlet, prince of denmark act iii, scene i. a room in th…
dying
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the tragedy of hamlet, prince of denmark act iii. scene i. a room in th…
He is uncertain about what will happen in the afterlife.
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1. sarah needs 80 inches of ribbon to finish a craft project. she has 7…
Sarah has 84 inches of ribbon. Yes, she has enough because 84 inches > 80 inches. ### Problem 2 (Marcie's Dog Food)
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independent practice 1. the amount of hours spent doing homework or stu…
s: a. \( y \approx \boldsymbol{2.88x + 45.60} \) (or more precise \( y \approx 2.88x + 45.60 \)) b. \( r \approx \boldsymbol{0.996} \), Positive, Strong c. Approximately \( \bolds…
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what is the constant of proportionality?
100
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12/15 ratios and proportions a grocery store sells six peaches for $4. …
The ratio of peaches to cost is $3:2$ (or $\frac{3}{2}$) for both stores.
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the new dolphin tank at the city aquarium is in the shape of a rectangu…
\( 55242 \) ### (b)
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omars diner offers its clients a choice of regular and diet soda. last …
7
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12/15 ratios and proportions x | 1 | 2 | 3 | 4 y | 5 | 10 | 15 | 20 gra…
40
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12/15 ratios and proportions 3 kg of apples cost $4.50. what is the cos…
The cost of 1 kg of apples is $1.50.
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a box contains \\(\\frac{2}{3}\\) kg of pasta and serves 4 people. how …
Each person gets $\frac{1}{6}$ kg of pasta.
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a runner completes \\(\\frac{1}{2}\\) mile in \\(\\frac{1}{2}\\) hour. …
1
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a train travels \\(\\frac{120}{6}\\) miles in \\(\\frac{1}{3}\\) hours.…
300
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a train travels \\(\\frac{120}{6}\\) miles in \\(\\frac{1}{3}\\) hours.…
300
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bryan is pet-sitting his neighbors dog, scout, this weekend. bryan boug…
The inequality is \( t\leq8 \). For the graph, plot a closed endpoint at 8 on the number line (marked at 8) and draw an arrow pointing to the left (towards numbers less than 8).
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bryan is pet-sitting his neighbors dog, scout, this weekend. bryan boug…
The inequality is \( t \leq 8 \). For the graph, plot a closed circle at 8 on the number line and draw an arrow to the left.
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what is the constant of proportionality?
5
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name amani roy fractions to decimals & percents sheet 1 fraction → divi…
- Corrected decimal for \( \frac{3}{4} \): \( 0.75 \) - \( \frac{5}{6} \): Decimal \( \approx 0.833 \), Percent \( \approx 83.3\% \) - \( \frac{2}{9} \): Decimal \( \approx 0.222 …
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complete the sentences. the distribution of the number of hours worked …
standard deviation and the interquartile range
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the bagel stop is a great place for high school students to work becaus…
6 (assuming the question was about the number of employees in 16 - 20 hours range. If the actual question was different, adjust accordingly. But based on the histogram, this is a …
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what is the constant of proportionality?
The constant of proportionality is \(\boxed{6}\) (Wait, no, maybe I made a mistake. Wait, let's check again. Wait, maybe the graph is such that when \( x = 1 \), \( y = 6 \), so \…
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5 8 6 7.5 7.2 7 8.5 6 6. which point is closest to the line of best fit…
The point (6, 7.5) is closest to the line of best fit.
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what is the constant of proportionality?
6
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last year, shannon and her friends walked a total of 13.5 miles in the …
The inequality is \( d\geq13.5 \). For the graph, plot a closed dot at 13.5 and draw an arrow to the right.
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lucias family likes to have bagels for breakfast. at the bakery, lucia …
The inequality is \( \boldsymbol{b < 12} \). For the graph, plot an open circle at 12 on the number line and draw a ray pointing to the left (towards numbers less than 12).
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greenville has a town - wide hunt for plastic dinosaur eggs every sprin…
The inequality is \(e > 25\). For the graph: Plot an open circle at 25 on the number line and draw an arrow to the right (towards 26, 27, etc.).
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x 2 4 6 8 y 1 2 3 4 graph the proportional relationship given in the ta…
6
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evaluate the expression, $(0.8 \\times 0.75)^2 + 0.10$ write your answe…
\(0.46\)
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destiny is making apple crisp. she will need a total of 12 apples for t…
The inequality is \( g \leq 9 \). For the graph, plot a closed circle at 9 and draw an arrow to the left (towards lower numbers) on the number line.
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which graph is not proportional? the pink graph the black graph both ne…
The black graph
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karen is planning to texture - coat a building whose dimensions are sho…
(part a): \( 1011\) ft² ### Part (b)
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the median of 5, 7, 2, 9, 8 is: 5 7 8 6
7
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the table shows how the time it takes a train to travel between two cit…
(for the first question: rational function): The rational function that models the time \(y\) (in hours) that it takes the train to travel between the two cities at an average spe…
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how many one-to-one correspondences are there between two sets with a. …
720
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a horse owner has 50 lbs of hay that is 6% protein by weight. he adds x…
\( 0.06 \) (or \( 6\% \))
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the graph to the right shows that the three components of love, namely …
\( x < 8 \) (so the set - builder notation is \( \{x|x < 8\} \))
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which of the following is a binomial experiment? - flipping a coin unti…
Flipping a coin 10 times and recording if it comes up heads
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a cafeteria purchases milk from one of three providers each week, depen…
2.90
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joe takes part in math competitions. a particular contest consists of 2…
90.8
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each of these relationships reflects a correlation. which relationship …
Vacuuming living room carpets more often is associated with having cleaner bathrooms.
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which of the following is a binomial experiment? flipping a coin until …
C. Flipping a coin 10 times and recording if it comes up heads
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a pottery factory kept track of the number of broken plates per shipmen…
The height of the missing (0 - 9) bar is 4.
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a game uses a cube that has a different weather symbol on each face. ro…
3
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there is a spinner with 15 equal areas, numbered 1 through 15. if the s…
\(\frac{1}{15}\)
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excerpt from \what the black man wants\ by frederick douglass delivered…
In a country that was built on the idea of freedom, everyone should have equal rights.
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the mean of the temperatures in the chart is 24° with a standard deviat…
C. $22^\circ$ (assuming the options are A. $18^\circ$, B. $20^\circ$, C. $22^\circ$, D. $30^\circ$)
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what are typical characteristics of propaganda? select three options. □…
A. charged language, B. mass distribution, E. preconceived ideas
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amber created a scatter plot and drew a line of best fit, as shown. wha…
\(y = 0.3x+12\) (or \(y=\frac{3}{10}x + 12\))
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millie comes to america (1) millie was a delightful little girl full of…
C. So very nervous was she.
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technology takeover (1) take a look around you. (2) what is it you see?…
A. Balance is key; use them in moderation.
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6 tiana is preparing for a dance recital. she practices for 25 minutes …
40
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micah is preparing for a piano recital. he practices for 50 minutes on …
80%
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now, collect \\(\\frac{2}{5}\\) of the 20 pieces of fruit. how many pie…
8
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match each correlation coefficient to the appropriate scatter plot. r =…
\( r = 0 \) matches the left scatter plot, \( r = 0.5 \) matches the right scatter plot.
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match each correlation coefficient to the appropriate scatter plot. r =…
- \( r = 0 \): Right scatter plot (points with no linear trend) - \( r=-0.7 \): A plot with negative, moderate linear trend (if available, but in the given two, the right is \( r …
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the length of human pregnancies is approximately normal with mean \\( \…
The probability that the mean of a random sample of 4 pregnancies is less than 250 days is \(\boxed{0.0228}\) (or 2.28% when expressed as a percentage).
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the length of human pregnancies is approximately normal with mean μ = 2…
16
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consider a random variable x that is normally distributed. complete par…
$\frac{20}{\sqrt{21}}$ (or equivalently $\frac{20\sqrt{21}}{21}$ after rationalizing, but the first form is also exact as per the question's request)
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in a class of students, the following data table summarizes the gender …
\(\frac{3}{5}\)