Which of the following would indicate that a dataset is not bell-shaped? A. The mean is much smaller than the median. B. The range is larger than the interquartile range. C. The range is equal to 5 standard deviations. D. There are no outliers.

of the data. This measure is all the data points and dividing by the total number of data points. The mean describes an entire sample with a single number that represents the calculated by

Find the indicated IQ score. The graph to the right depicts IQ scores of​ adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.   Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING...                 x 0.7         A graph with a bell-shaped curve, divided into 2 regions by a line from top to bottom, on the right side. The region left of the line is shaded and labeled 0.7. The x-axis below the line is labeled "x".       Question content area bottom Part 1 The indicated IQ​ score, x, is enter your response here. ​(Round to one decimal place as​ needed.)

Q.Discuss coefficient of mean deviation.

What would a histogram look like if the mean is 50 the median is 50 and the standard deviation is 1.6?

Researchers measured the data speeds for a particular smartphone carrier at 50 airports. The highest speed measured was 77.977.9 Mbps. The complete list of 50 data speeds has a mean of x overbarxequals=17.5417.54 Mbps and a standard deviation of sequals=18.9718.97 Mbps.   a. What is the difference between​ carrier's highest data speed and the mean of all 50 data​ speeds? b. How many standard deviations is that​ [the difference found in part​ (a)]? c. Convert the​ carrier's highest data speed to a z score. d. If we consider data speeds that convert to z scores between minus−2 and 2 to be neither significantly low nor significantly​ high, is the​ carrier's highest data speed​ significant?

Which of the three brands had the smallest mean lifetime?  Try doing this without a calculator- just compare the three plots.

A distribution of scores has no mode and the same median and mean values. This indicates that the

Claim: The mean systolic blood pressure of all healthy adults is less than 122 mm Hg. Sample data: For 269 healthy adults, the mean systolic blood pressure level is 121.74 mm Hg and the standard deviation is 15.02 mm Hg. Complete parts (a) and (b). a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult.

What is the relationship between the variance and the standard deviation for a sample data set? A. The standard deviation is equal to half the variance. B. The standard deviation is equal to two times the variance.     C. The standard deviation is the square root of the variance. D. The standard deviation is the square of the variance.