Class Work #16 - Finding Percentages

For males in a certain town, the systolic blood pressure is normally distributed with a mean of 130 and a standard deviation of 7. What is the probability that a randomly selected male's systolic blood pressure will be between 116 and 135?

Round your answer to the nearest percent.

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CCSS.HSS.ID.A.4

The weight of oranges growing in an orchard is normally distributed with a mean weight of 8 oz. and a standard deviation of 0.5 oz. What is the probability that a randomly selected orange from the orchard weighs less than 8 oz.?

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CCSS.HSS.ID.A.4

At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 10 minutes and a standard deviation of 3 minutes. What percentage of customers have to wait between 5 minutes and 14 minutes?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

In an all boys school, the heights of the student body are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. What is the probability that a randomly selected student will be taller than 71 inches tall?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

For males in a certain town, the systolic blood pressure is normally distributed with a mean of 130 and a standard deviation of 10. What is the probability that a randomly selected male's systolic blood pressure will be between 130 and 157?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

The weight of oranges growing in an orchard is normally distributed with a mean weight of 7.5 oz. and a standard deviation of 1 oz. What percentage of the oranges from the orchard weigh more than 9 oz.?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 28 minutes and a standard deviation of 2 minutes. What percentage of customers have to wait less than 31 minutes?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

When Sophie commutes to work, the amount of time it takes her to arrive is normally distributed with a mean of 41 minutes and a standard deviation of 2 minutes. What percentage of her commutes will be shorter than 45 minutes?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

When Amira goes bowling, her scores are normally distributed with a mean of 160 and a standard deviation of 13. What percentage of the games that Amira bowls does she score less than 192?

Round your to the nearest tenth.

Tags

CCSS.HSS.ID.A.4

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability that a randomly chosen person's IQ score will be between 101 and 134?

Round your answer to the nearest tenth.

Tags

CCSS.HSS.ID.A.4