114 Answered Questions for the topic AP statistics

Ap Statistics

01/07/21

AP Stats 1 Question
The way in which response options are presented in a question can affect a person's response. Two hundred randomly selected people were asked about their milk chocolate or dark chocolate... more
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Ap Statistics Math

01/01/21

Two AP Stats Questions
QUESTION 1: Twenty students from Sherman High School were accepted at Wallaby University. Of those students, eight were offered military scholarships and 12 were not. The newly accepted student SAT... more
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Ap Statistics Math

01/01/21

Two AP Statistics Questions
Question 1:A manufacturer of a new medication on the market for Parkinson's disease makes a claim that the medication is effective in 75% of people who have the disease. One hundred fifty... more
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Ap Statistics

01/01/21

AP Stats 1 Question

Students at a local high school were randomly selected to participate in a math fluency program. The program is designed to increase their math fluency. A total of 12 students each took a pretest... more
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Ap Statistics

01/01/21

AP Stats Degrees of Freedom
Randall is conducting a test on bacteria on slices of cheese. He uses 10 slices of cheese to compare two strains of bacteria. He applies one strain to the left side of the cheese and one strain to... more
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Ap Statistics

01/01/21

AP Stats Hwk 1 Question
Buyers are skeptical of a speed boat advertisement that claims the newest model gets an average of 24 miles per gallon. They believe the dealer is overstating the average. Which null and... more
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Ap Statistics

12/16/20

AP Statistics, questions about probability with a deck of 52 cards
We draw 5 cards out of a deck of 52 cards.a. What is the probability that at least of those cards is Jack or a Queenb. What is the probability that the first card picked from those 5 randomly... more
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Ap Statistics Statistics

12/14/20

This is a question I got partially incorrect on my last exam, I posted this already and still have gotten no responds. I really need help with this!
In basketball, a player gets two foul shots when fouled. In a random sample of games over Larry Bird’s long NBA career, he hit the second foul shot in 45 of 53 attempts after the first was missed... more
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Ap Statistics Math Ap Calculus

11/10/20

AP STAT QUESTION DUE TODAY PLS HELPPPPP!!!!!
A researcher is interested in determining the effectiveness of a new medication that may reduce blood pressure for individuals who have higher than average blood pressure. To determine the... more
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Ap Statistics

11/01/20

How do I find the mean and standard deviation from certain percentages to solve this problem?
This is the problem I'm trying to solve:A company that sells machines that fills soda cans has claimed that not only will their machine under-fill only 0.5% of cans, but that 90% of cans will have... more
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Ap Statistics

10/22/20

I am having trouble with this question, please help!
Purchases at a supermarket on a busy Saturday afternoon fall into a roughly normal distribution with mean $55 and standard deviation $18. How much do the middle 68% of customers purchase (1... more
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Ap Statistics

10/22/20

I am having trouble with this question, please help.
The height of an adult male is known to be normally distributed with a mean of 69 inches and a standard deviation of 2.5 inches. How high should a doorway be so that 99.5% of the adult males can... more
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Ap Statistics

10/15/20

AP STAT QUESTION PLS HELP
The number of cavities in school-aged children and size of vocabulary are known to have a strong negative association. Toby concluded that the number of cavities causes a decrease in vocabulary. Is... more
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Ap Statistics

10/09/20

AP STAT QUESTION PLS HELP!!
Patrick calculated the correlation coefficient to be 0 when observing the balance in his savings account over a two-year period. He concluded that there is no relationship between the balance and... more
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Ap Statistics Math

08/28/20

What is the “who”, “what”, and “population of interest” in the following data description?
Find the “who”, “what” and “population of interest” from this description of data: The state education department requires Local school districts to keep these records on all students: age, race or... more
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Ap Statistics Statistics

05/15/20

A farmer wants to determine how much better this new brand of fertilizer (Brand A) is compared to the old one (Brand B). He decides to divide his field into 1000 plots
 He randomly selects 30 plots to receive Brand A and randomly selects 40 plots to receive Brand B. After this process, if the same plot comes up in both samples he throws it out of each sample and... more
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Ap Statistics Statistics

05/15/20

An association of Christmas tree growers in Indiana sponsored a sample survey of households to help improve the marketing of Christmas trees
Of 421 households that do display a Christmas tree, 160 lived in rural areas and 261 were urban residents. The tree growers want to know if there is a difference in preference for natural trees... more
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Ap Statistics Math Statistics

04/14/20

I NEED HELP!!!!!!
A political candidate has asked you to conduct a pool to determine what percentage of people support him. If the candidate only wants a 1% margin of error at a 95% confidence level what size of... more
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Ap Statistics Statistics

04/13/20

A set of college student heights are normally distributed with a mean of 170.4 centimeters and a standard deviation of 10 centimeters.
What proportion of student heights are between 170.5 centimeters and 180.3 centimeters?
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Ap Statistics

04/05/20

AP STATISTICS Stem Plot, Rounding Stem Plots
Shopping spree The stemplot displays data on the amount spent by 50 shoppers at a grocery store. Note that the values have been rounded to the nearest dollar.0 | 3 9 91 | 1 3 4 5 6 7 7 8 8 92 | 0 0... more
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Ap Statistics Statistics

03/26/20

Stat Histogram Question
The manager of a vacation resort believes that the ages of adult visitors to the resort can be modeled by a normal distribution. The manager surveyed a random sample of 765 visitors and recorded... more
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Ap Statistics Math Statistics Sat Math

03/02/20

Statistics question- Testing a Hypothesis (Type I and Type II errors)
Remember our bank that’s sending out DVDs to try to get customers to make payments on delinquent loans? It is looking for evidence that the costlier DVD strategy produces a higher success rate than... more
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Ap Statistics Probability

11/01/19

Ap Stats Probability
The teacher had seven students lined up to ask about homework. The class had 20 males and 17 females. What is the probability that all 7 students who lined up were male? Please leave in fraction form. more
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Ap Statistics Statistics

10/15/19

A simple random sample from a population with a normal distribution of 102 body temperatures has x=98.80 F° and s=0.66 F°
A simple random sample from a population with a normal distribution of 102 body temperatures has x=98.80 F° and s=0.66 F° Construct a 99​% confidence interval estimate of the standard deviation of... more
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Ap Statistics Statistics

10/07/19

In a survey of 3371 adults aged 57 through 85​ years, it was found that 81.3​% of them used at least one prescription medication.
Construct a​ 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.
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