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YessicaFrancoMATH1342.10PRE3

Authored by Yessica Franco

Mathematics

University

CCSS covered

Used 1+ times

YessicaFrancoMATH1342.10PRE3
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total area under the standard normal distribution?

0

1%

50%

100%

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the area under the standard normal distribution curve.

Between z=0 and z=1.07

0.3577

0.5000

0.8577

0.3500

Tags

CCSS.HSS.ID.A.4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the probability using the standard normal distribution

P(z<1.53)

0.9357

0.9115

0.9370

0.9330

Tags

CCSS.HSS.ID.A.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the probability using the standard normal distribution

P(z>0.78)

0.7823

0.2177

0.9345

0.78

Tags

CCSS.HSS.ID.A.4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 

Find the following probabilities for the standard normal random variable z:

P(−1.36 ≤ z ≤ 1.38) 

Z=0.80

Z=0.9125

Z=0.8293

Z=0.86541

Tags

CCSS.HSS.ID.A.4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the following probabilities for the standard normal random variable z:

P(−2.27 ≤ z ≤ 1)

Z=0.9379

Z=0.8889

Z=0.9687

Z=0.9875

Tags

CCSS.HSS.ID.A.4

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Teachers’ Salaries The average salary for first-year teachers is $27,989. If the distribution is approximately normal with SD=$3250 , what is the probability that a randomly selected first-year teacher makes these salaries

between $20,000 and $30,000 a year?

0.3326

0.7583

0.6542

0.7225

Tags

CCSS.HSS.ID.A.4

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