Grade 11 and 12 Mathematics (Moderator: geoffrey)

For distributions of data that are skewed to the left or right, the median would likely be the best ...

Started by V@ndy87

You are given the data values 5, 10, 15, 20, and 25 . If these data were considered to be a ...

Started by lracut11

The value (n + 1) / 2 indicates the value of the median in an ordered data set, where n is the ...

Started by TFauchery

For any distribution, if the mean is equal to the standard deviation, you can infer that the ...

Started by Themember4

A distribution is said to be skewed to the right if the population mean is larger than the sample ...

Started by mwit1967

One advantage of using the median as a measure of center is that its value is not affected by ...

Started by cnetterville

A data set in which the mean and median are equal is said to be bimodal data. Indicate whether the ...

Started by nelaaney

If the mean value of a distribution is 85 and the median is 67, the distribution must be skewed to ...

Started by bcretired

One of the advantages of the standard deviation over the variance as a measure of variability is ...

Started by s.tung

For any distribution, the standard deviation is a measure of variability of the data around the ...

Started by kamilo84

Which measure of center is meaningful when the data are qualitative? a. the mean b. the median c. ...

Started by Medesa

Which of the following statements is true for a symmetric distribution? a. The mean is greater than ...

Started by joesmith1212

Data about qualitative variables can be summarized by: a. measures of center b. measures of ...

Started by 2125004343

Which of the following best describes measures of center? a. They are numbers around which ...

Started by charchew

Consider the data set: 5, 6, 7, 11, and 15 . Its mean equals: a. 7.0 b. 8.8 c. 8.1 d. 7.3 e. ...

Started by lunatika

Which of the following statements about the median is correct? a. It is a measure of center that ...

Started by imanialler

A random sample from an unknown population had a sample standard deviation of zero. Which one of the ...

Started by cnetterville

The following data represent a sample of 10 scores on a 20-point statistics quiz: 16, 16, 16, 16, ...

Started by Starlight

A sample of 25 observations has a standard deviation of 4 . The sum of the squared deviations from ...

Started by V@ndy87

Numbers that indicate the spread or scatter of observations in a data set are: a. measures of ...

Started by cherise1989

The variance is: a. a mean of absolute deviations b. a mean of positive and negative deviations ...

Started by acc299

If a store manager selected a sample of customers and computed the mean income for this sample, he ...

Started by charchew

A sample of students who have taken a calculus test has a mean score of 78.2, a mode of 67, and a ...

Started by moongchi

Suppose that the distribution of actual weight of students in your university or college is thought ...

Started by leo leo

The Empirical Rule and Tchebysheff's Theorem can be used to describe data sets. Indicate whether ...

Started by V@ndy87