# Question

For the standard normal distribution, what is the area within 2.5 standard deviations of the mean?

## Answer to relevant Questions

For the standard normal distribution, what is the area within three standard deviations of the mean? Find the area under the standard normal curve a. Between z = 0 and z = 4.28 b. From z = 0 to z = –3.75 c. To the right of z = 7.43 d. To the left of z = –4.69 Obtain the following probabilities for the standard normal distribution. a. P(z > –1.86) b. P(–.68 < z < 1.94) c. P(0 < z < 3.85) d. P(–4.34 < z < 0) e. P(z > 4.82) f. P(z < –6.12) Let x be a continuous random variable that is normally distributed with a mean of 25 and a standard deviation of 6. Find the probability that x assumes a value a. between 29 and 36 b. between 22 and 35 A construction zone on a highway has a posted speed limit of 40 miles per hour. The speeds of vehicles passing through this construction zone are normally distributed with a mean of 46 miles per hour and a standard deviation ...Post your question

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