Assume that the distributions for the following scenarios are normal. Use the normal standard table to find the following probabilities. Round z-scores to the nearest hundredth. 1. The average score on a math test is 75 with a standard deviation of 8. What is the probability that a randomly selected test has a score of 90 or higher? P(z 2. The life of a gas grill is 3.5 years with a standard deviation 0.35 years. What is the probability that the grill will last less than 3 years? P(z 3. Ambulance response times average 7.5 minutes with a standard deviation of 2.5. What is the probability that an ambulance will respond within 6 to 8 minutes. P(

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Assume that the distributions for the following scenarios are normal.
Use the normal standard table to find the following probabilities. Round
z-scores to the nearest hundredth.
1. The average score on a math test is 75 with a standard deviation
of 8. What is the probability that a randomly selected test has a
score of 90 or higher?
P(z
2. The life of a gas grill is 3.5 years with a standard deviation 0.35
years. What is the probability that the grill will last less than 3
years?
P(z
3. Ambulance response times average 7.5 minutes with a standard
deviation of 2.5. What is the probability that an ambulance will
respond within 6 to 8 minutes.
P(
Transcribed Image Text:Assume that the distributions for the following scenarios are normal. Use the normal standard table to find the following probabilities. Round z-scores to the nearest hundredth. 1. The average score on a math test is 75 with a standard deviation of 8. What is the probability that a randomly selected test has a score of 90 or higher? P(z 2. The life of a gas grill is 3.5 years with a standard deviation 0.35 years. What is the probability that the grill will last less than 3 years? P(z 3. Ambulance response times average 7.5 minutes with a standard deviation of 2.5. What is the probability that an ambulance will respond within 6 to 8 minutes. P(
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