70 Answered Questions for the topic AP statistics

Ap Statistics

1d

#### What's the probability that at least 4 out of the next 20 customers will buy cake pops? (Hint: remember to show the setup!)

Lindsay knows 48% of people who walk into her dessert show will buy cake pops.
Ap Statistics

1d

#### What’s the probability Lindsay won’t sell a cake pop until the 9th customer? Round your answer to 4 decimal places.

Lindsay knows 48% of people who walk into her dessert show will buy cake pops.
Ap Statistics

6d

#### Pew Research reported that, in 2013, 78% of all teens had a cell phone. Assume this estimate is correct. We randomly pick 100 teens.

What’s the approximate probability that less than three-fourths of this sample owns a cell phone?
Ap Statistics

8d

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
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
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
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
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
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
1 3

## Still looking for help? Get the right answer, fast.

Get a free answer to a quick problem.
Most questions answered within 4 hours.

#### OR

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.