Flashcard Lesson 6.4 ~6.6

Flashcard Lesson 6.4 ~6.6

Assessment

Flashcard

Mathematics

11th - 12th Grade

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

When can you use a normal approximation for the sampling distribution of p?

Back

You can use a normal approximation when np ≥ 10 and n(1-p) ≥ 10.

2.

FLASHCARD QUESTION

Front

What is the probability of getting a sample of size 50 that has 15 or more students who believe Monday will be a snow day if 28% of all students believe it?

Back

The probability is 0.376.

3.

FLASHCARD QUESTION

Front

What is the average amount of sleep teenagers attending public high schools get each night?

Back

The average is 5.7 hours.

4.

FLASHCARD QUESTION

Front

What is the standard deviation of sleep for teenagers attending public high schools?

Back

The standard deviation is 1.7 hours.

5.

FLASHCARD QUESTION

Front

What is the probability that a randomly selected group of 35 high school students get more than 6 hours of sleep each night?

Back

The probability is 0.148.

6.

FLASHCARD QUESTION

Front

For the population of farm workers in New Zealand, what is the mean weekly income?

Back

The mean weekly income is $500.

7.

FLASHCARD QUESTION

Front

What is the standard deviation of weekly income for farm workers in New Zealand?

Back

The standard deviation is $160.

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