Exit Ticket: Normal Curve Distribution Practice - STATS

The new CDC requirements for quarantining is normal distributed with a mean of 10 days and a standard deviation of 3 days depending on COVID test after 5 days of being exposed.

About what percent of the quarantine periods last between 10 and 13 days?

• 2.5%

• 16%

• 34%

• 68%

Tags

CCSS.HSS.ID.A.4

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Out of a randomly selected 900 people from the population, how many of them would have an IQ less than 79, to the nearest whole number?

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CCSS.HSS.ID.A.4

1.  Which best describes the shaded part of this normal distribution graph?  

• All data that is one or higher.
• All data that is one or more standard deviations above the mean.
• All data that is between 1 and 3.
• All data that is above the mean.

What shape is a normal distribution curve?

• Half curve
• Round curve
• Bell curve
• Square curve

Between what two standard deviations of a normal distribution contain 68% of the data?

• one below and one above
• two below and two above
• two below and zero
• zero and two above

Tags

CCSS.HSS.ID.A.4

Where can we locate the mean in the normal curve?

• to the left portion

• to the right portion

• at the center

• on the z - axis

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

The heights of male students are Normally distributed with mean 1.7 m and standard deviation 0.2 m

In a population of 400 male students, how many would you expect to have a height between 1.4 m and 1.6 m?

Tags

CCSS.HSS.ID.A.4

The weight of oranges at Key Food is normally distributed with a mean weight of 7.5 oz. and a standard deviation of 1.5 oz. What is the probability a orange weigh less than 6 oz?

• 0.726

• 0.841

• 0.27

• 0.159

Tags

CCSS.HSS.ID.A.4

What is the the total area under the standard normal distribution curve?

When Aasian runs the 400 meter dash, his finishing times are normally distributed with a mean of 87 seconds and a standard deviation of 2.5 seconds. Using the empirical rule, determine the interval of times that represents the middle 95% of his finishing times in the 400 meter race.

• (79.5, 94.5)

• (82,92)

• (0, 95)

• (84.5 , 89.5)

Tags

CCSS.HSS.ID.A.4