The testing times for a group of college students were normally distributed with a mean of...
According to National Testing data, college math class testing times are Normally distributed with a mean of 55 minutes and standard deviation 6 minutes. The bell curve below represents the probability distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the three indicated boxes.
In a normally distributed data set with a mean of 22 and a standard deviation of 4.1, what percentage of the data would be between 17.9 and 26.1? a)95% based on the Empirical Rule b)99.7% based on the Empirical Rule c)68% based on the Empirical Rule d)68% based on the histogram
The time to complete an exam is approximately Normal with a mean of 54 minutes and a standard deviation of 2 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. H = 54 O = 2 H-30 -20 H- O u to +20 u + 30 OOOOOOO Get help: Written Example License Points possible: 3 This is attempt 1 of 3....
The time to complete an exam is approximately Normal with a mean of 49 minutes and a standard deviation of 5 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. H = 49 O = 5 H-30 H-20H. +O +20 + 30 Question Help: Written Evam
The mean time to assemble a piece of furniture is 52 minutes. Suppose the the assembly times are normally distributed with a standard deviation of 4.3 minutes. What percentage of assembly times fall between 47.7 minutes and 56.3 minutes? Use the Empirical Rule 16% 68% 99.7% 95%
SAT verbal scores are normally distributed with a mean of 489 and a standard deviation of 93. Use the empirical rule (also called 68-95-99.7 rule) to determine what percentage of the scores lie. a) between 210 and 675. b). Above 675?
Scores of 281 students on an exam were normally distributed with the mean 79 and the standard deviation of 6. Using the "68-95-99.7" rule, estimate how many students score above 91 O 15 O 14 Not enough information to answer the question None of the given numerical values is correct 10
Scores of 239 students on an exam were normally distributed with the mean 79 and the standard deviation of 6. Using the "68-95-99.7" rule, estimate how many students score above 91 9 Not enough information to answer the question 12 6 2 3 13 None of the given numerical values is correct
Question 3 < > 01 Details The time to complete an exam is approximately Normal with a mean of 41 minutes and a standard deviation of 7 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. M = 41 O = 7 1-30 -20 -20 H-O р HO +20 +30
Please Find the Intervals for the questions below: Pro golf scores are bell-shaped with a mean of 70 strokes and a standard deviation of 4 strokes. Using the empirical rule, in what interval about the mean would you expect to find 95% of the scores? Interval is - A child's piano practice times are normally distributed with of 19 minutes and a standard deviation of 5 minutes. Using the empirical rule, in what interval about the mean would you...