统计与概率
数据分析、概率分布、假设检验与统计方法。
-
math test scores if 70 and above is considered a passing grade, how man…
A. 8
-
the scatterplot shows the relationship between two variables, x and y. …
D) $y = 9.4 - 0.9x$
-
select the correct answer from each drop - down menu. pablo surveyed hi…
1. There were 10 students who watched $\boldsymbol{9}$ (or 13) movies. 2. There were more students who watched 5 to 7 movies than students who watched $\boldsymbol{8-9}$ movies. 3…
-
a jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. ma…
0.1032
-
week 14 glow: to emit light and/or light or heat with brim: the edge or…
1. Pernicious: having a harmful effect, especially in a gradual or subtle way. 2. Mellifluous: sweet or musical; pleasant to hear. 3. Ephemeral: lasting for a very short time. 4. …
-
12. during a trip, martha drove \\(\\frac{1}{6}\\) of the time, chris d…
$\frac{7}{12}$
-
weights of cats (in pounds) the weights of 9 different cats, in pounds,…
A. 7
-
13. the table shows the schedule for certain trams at a theme park. bot…
72 minutes ### Question 14 (Craft Depot Visits Problem)
-
x | y 5 | 3 14 | 9 15 | 13 20 | 18 y =
$y=x-2$
-
work through each problem with your group. show your work. the table sh…
Scientific notation: $7.42 \times 10^7$ Standard form: $74200000$
-
x | y 5 | 1 12 | 8 16 | 12 18 | 14 y = (there is also a graph with a pu…
$y=x-4$
-
last night, the movie theater sold 142 diet sodas and 58 regular sodas.…
71%
-
read the excerpt from the odyssey. then i sent out two picked men and a…
A. The men sent by Odysseus to investigate the land they had landed upon became forgetful after eating Lotus plants.
-
x | y 0 | 0 1 | 2 9 | 10 13 | 14 y =
$y = x + 1$
-
cooper has $10\\frac{1}{4}$ bags of shredded cheese. each week, cooper …
\(8\frac{11}{14}\) (or \(\frac{123}{14}\))
-
x | y 5 | 5 11 | 11 13 | 13 18 | 18 y =
$y = x$
-
in a certain town, 45% of the voters support a school referendum up for…
0.0125
-
respond to each of the following. a. a cookie recipe uses 3 cups of flo…
20 ### Part b
-
question 5 of 8 shelby can drive 165 miles in 3 hours. at this speed, h…
C. 220 miles (assuming the time is 4 hours, as the original question seems to have a typo in the end but the option 220 matches with speed 55 mph and time 4 hours)
-
geometric random variables 71% of the surface of the earth is covered i…
\( (0.71)^{7}(0.29) \) (the third option)
-
select the two correct answers. which are unit rates for the rate \80 m…
A. 2 meters per minute, D. 0.5 minutes per meter
-
this question has two parts. first, answer part a. then, answer part b.…
### Part A - Motor boat distance: \(-2.55\) miles - Tugboat velocity: \(-5\) miles per hour ### Part B - First blank: opposite - Second blank: opposite
-
select the three correct answers. which rates are unit rates? \\(\\frac…
- $\boldsymbol{\frac{\frac{3}{2} \text{ feet}}{1 \text{ minute}}}$ - $\boldsymbol{\frac{35 \text{ miles}}{1 \text{ gallon}}}$ - $\boldsymbol{\frac{\$10.25}{1 \text{ hour}}}$
-
select the correct answer from each drop - down menu. lindsey arranges …
### For the first drop - down (the given rate): # Explanation: ## Step1: Identify the given quantities We know that Lindsey uses 48 raspberries for 6 plates. So the given rate is …
-
it takes steve 18 minutes to get to work every morning. steve spends 37…
Steve spends 6.66 minutes stuck in traffic.
-
question 1 of 8 which statement describes a unit rate? yura creates 14 …
C. Danny fills 4 coffee cups from 1 coffee pot.
-
3. juliana spins the spinner two times. she determines the sum of the t…
$\frac{3}{16}$
-
length of insects (inches) \\(\\bigstar = 1\\) insect how many insects …
$\frac{3}{4}$ inches
-
sarabeth went to the ice cream parlor with her family. each of her fami…
### Ilustración (Ilustración de los helados): Se dibujan 4 cucharadas de helado en cada uno de los 5 conos (un total de 20 cucharadas, distribuidas de 4 en 4 por cono). ### Suma: …
-
round to the nearest ten. 759 856 523 685 652 980 155 374 410 253 677
To round a number to the nearest ten, we look at the ones digit. If the ones digit is 5 or greater, we round up (increase the tens digit by 1 and set the ones digit to 0). If the …
-
select the correct response from each drop - down menu. a farmer drives…
s (for each drop - down in order): - The given rate is $\boldsymbol{\frac{120 \text{ miles}}{20 \text{ gallons}}}$ (or 120 miles per 20 gallons). - The unit rate is $\boldsymbol{\…
-
there are four blood types, and not all are equally likely to be in blo…
No, because it is not looking for the first occurrence of success.
-
3. juliana spins the spinner two times. she determines the sum of the t…
$\frac{3}{16}$
-
which sign makes the statement true? 50%? \\(\frac{1}{2}\\) > < =
=
-
which sign makes the statement true? 0.39? 90% > < =
< (B. <)
-
which sign makes the statement true? 64.1%? 82.86% > < =
< B. <
-
which sign makes the statement true? 84%? \\(\frac{81}{96}\\) > < =
< $<$
-
0.3 compare percents to fractions and decimals jae which sign makes the…
>
-
which sign makes the statement true? 0.49? 11\\frac{1}{10}%
>
-
which sign makes the statement true? 0.99685? 99.685% > < =
=
-
which sign makes the statement true? 34.4%? \\(\frac{11}{32}\\) > < =
$>$
-
0.47×10³=4,470÷10—
$0$
-
which sign makes the statement true? 54%? 54% > < =
=
-
which sign makes the statement true? 98%? \\(\frac{63}{64}\\) > < = sub…
<
-
15. find the unit rate. 240 miles in 8 days (a) if your answer is 40 mi…
30 miles/day
-
0.3 compare percents to fractions and decimals jae which sign makes the…
>
-
which sign makes the statement true? 77.32%? 0.7732 > < =
< $0.7732 < 0.\dot{7}73\dot{2}$ so the correct sign is < >
-
which sign makes the statement true? 35%? 0.592 > < =
<
-
which statement describes a personal pressure that is commonly associat…
A. Children have parents who smoke
-
question 8 the article says: such protests are very different from angr…
B. a sword
-
which sign makes the statement true? 70%? 0.087 > < =
>
-
b. \\underline{\\quad\\quad} \\times 10^2 = 2,368,041 \\div 100,000 \ e…
b. $0.2368041$ c. The equation is true (both sides equal 447)
-
which sign makes the statement true? 0.84? 31% > < =
>
-
12. a data set is approximately normally distributed. 12a if a value th…
3.42
-
which sign makes the statement true? 32%? 0.32 > < =
=
-
which sign makes the statement true? 83%? 90% > < =
<, B. < (assuming the second option is labeled B)
-
which sign makes the statement true? 21%? 22.5 > < =
<
-
which sign makes the statement true? 25%? \\(\frac{1}{4}\\) > < =
=
-
which sign makes the statement true? 55%? \\(\frac{12}{25}\\) > < =
>
-
11. the volume of water in a bottle is approximately normally distribut…
-1.2
-
11. the volume of water in a bottle is approximately normally distribut…
499.52 mL
-
read the problem. at the springfield senior centers bingo night, 20% of…
Correct model: The bottom (blue) bar model Total bingo players: 250
-
10. if yurts z score in a test is 1.6, the mean mark is 80% and standar…
$84.8$
-
1. fill in the chart below to write an equivalent representation of the…
| Scientific Notation | Equivalent Repeated Multiplication/Division | Equivalent Whole Number Product/Division | Standard Form | |---------------------------|---------------------…
-
read the problem. 10% of the students at harris middle school are on th…
300 students Correct model: The top (purple) bar model where 10% aligns with 30.
-
read the problem. 75% of the 200 items sold at tech world over a holida…
Correct model: The bottom (purple) bar model Number of televisions: 150 items
-
read the problem. carlos got 130 pieces of candy on halloween, and 39 o…
1. Correct model: The top (purple) bar model 2. Final percentage: 30%
-
9. neils best time in the half marathon is 139.4 minutes, while his bes…
$z_{full} = 2.5$
-
9. neils best time in the half marathon is 139.4 minutes, while his bes…
5.6
-
read the problem. at skyler airport, 30% of the scheduled flights are d…
800 scheduled flights Additionally, the correct model is the second (purple) bar graph, where 30% corresponds to 240, and the total (100%) is the unknown value.
-
read the problem. paleo museum has 60 dinosaur fossils. 60% of the dino…
1. Correct model: The pink (bottom) bar model 2. Number of herbivore fossils: 36 fossils
-
8. harry scored 10.06 in his test, in which the mean was 5.9 and the st…
$z = 4$
-
8. harry scored 10.06 in his test, in which the mean was 5.9 and the st…
2.6
-
directions: read the following exemplary introductory and first body pa…
To complete the five - paragraph essay about Shakespeare’s use of setting, symbols, and tone in Act 1 Scenes 1 and 2 of *A Midsummer Night’s Dream*, we can follow these steps: ###…
-
5. a variety pack of candy consists of nine bars each with a different …
C. 84
-
4. an automated teller machine (atm) requires a four - digit pin number…
10000
-
5. elizabeth had picked 4 bags of oranges. how many glasses of orange j…
16
-
x | y 3 | 11 5 | 13 8 | 16 10 | 18 y =
$y = x + 8$
-
4. a group of 6 friends bought 1 gallon of ice cream. if they split it …
Each friend would get $\frac{1}{6}$ gallon of ice cream.
-
neters every day. 5 days? easurement conversions. 515 | session 3.8 © p…
The total distance covered in 5 days is \( 19.25 \) meters.
-
lance baked a pie. justin ate \\(\\frac{2}{3}\\) of the pie, and joey a…
A. $\frac{1}{12}$
-
ount of stock mr. tanaka would use for 100 ounces in the recipe. click …
35 ounces
-
x | y 9 | 11 | 14 | 18 | (and a graph with x - axis from 0 to 10 and y …
Table values (y): 2, 3, 4.5, 6.5 Equation: $y=\frac{1}{2}x-\frac{5}{2}$
-
3. a bulldozer could carry $\\frac{1}{4}$ of a ton of sand. if a park n…
32
-
find an equivalent ratio where the total number of days is 100. hint: 2…
25
-
2. lyriq made ½ of a gallon of lemonade. if she were to pour the lemona…
$\frac{1}{12}$ gallon
-
isabelle sells corn at her family’s produce stand. on saturday, isabell…
- For total 20 ears: 13 ears - For total 100 ears: 65 ears Filled table: | Number of Ears of Corn Sold (Part) | 13 | 52 | 65 | |------------------------------------|----|----|----…
-
long, cold winters and short, cool summers. consistent, year - round mo…
The challenging, cold climate of the northern regions. ### Third Question (Critical natural resource for Canada's economy)
-
what percent of the distance from his apartment to the bus station has …
Chris has traveled 40% of the distance from his apartment to the bus station.
-
unit fraction word problems 1. at a restaurant, 6 people were at a tabl…
$\frac{1}{18}$ of a bowl
-
which statement is most correct about dating? a. people should change t…
C. You should compromise on behaviors that are not core to your happiness.
-
unit fraction word problems 1. at a restaurant, 6 people were at a tabl…
Each person would get \(\frac{1}{18}\) of a bowl of cheese dip.
-
what i can do task 7 you can do it! consider the heights of 5 learners.…
s: 1. List of all possible random samples: (1,1), (1,2), (1,3), (1,4), (1,5), (2,1), (2,2), (2,3), (2,4), (2,5), (3,1), (3,2), (3,3), (3,4), (3,5), (4,1), (4,2), (4,3), (4,4), (4,…
-
george is making 8 gallons of tropical trip punch. he has already poure…
$3\frac{3}{4}$ gal
-
question 5 (multiple choice worth 2 points) (940111lc) each person in a…
B. Those who did not respond may differ in some important way from those who did respond.
-
pushpin, a social networking site, sent out a survey to all female user…
Undercoverage occurred, so the results tell us little about the population of all adults.
-
question 3 (multiple choice worth 2 points) a shoe store sends an email…
The population is 34,000. The sample is 256.
-
question 2 (multiple choice worth 2 points) (dm01hlc) the football team…
Number the students on the school roster. Use a table of random numbers to choose 200 students from this roster for the survey.
-
math test scores if 70 and above is considered a passing grade, how man…
A. 8
-
ava flipped through a dessert cookbook with cookie recipes from around …
0