7.4 Team Challenge (B)

7.4 Team Challenge (B)

11th - 12th Grade

4 Qs

quiz-placeholder

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7.4 Team Challenge (B)

7.4 Team Challenge (B)

Assessment

Quiz

Mathematics

11th - 12th Grade

Easy

Created by

Kevin Koch

Used 2+ times

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4 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Compare the scores: a score of 75 on a test with a mean of 65 and a standard deviation of 8 and a score of 75 on a test with a mean of 70 and a standard deviation of 4.

A score of 75 with a mean of 70 and a standard deviation of 4 is better.

The two scores are statistically the same.

You cannot determine which score is better from the given information.

A score of 75 with a mean of 65 and a standard deviation of 8 is better.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An airline knows from experience that the distribution of the number of suitcases that get lost each week on a certain route is approximately normal with μ = 15.5 and σ = 3.6. What is the probability that during a given week the airline will lose between 10 and 20 suitcases?

0.1056

0.4040

0.3944

0.8341

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting less than 250 days.

0.0066

0.0606

0.1151

0.1591

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The distribution of cholesterol levels in teenage boys is approximately normal with μ = 170 and σ = 30 (Source: U.S. National Center for Health Statistics). Levels above 200 warrant attention. Find the probability that a teenage boy has a cholesterol level greater than 225.

0.0606

0.0366

0.0012

0.0718

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