A 100 question multiple choice test has 5 choices for each question: If a student selects all choices randomly, how many correct answers could the student expect?
Which of the following about the normal distribution is not true? a) Theoretically, the mean, median, and mode are the same b) About 2/3 of the observations fall within one standard deviation from the mean c) It is a discrete probability distribution d) Its parameters are the mean (p) , and standard deviation (0):
The area under the normal curve to the left of zero is ( -100% 550% 0% 50% 100%
If the probability that a public health nurse will find a client at home is 0.7, what is the probability (assuming independence) that on two home visits made in a day both clients will be home?
5. ) Statistical inference is the process of using the sample to draw conclusion about the population The value of Z increases as the confidence level decreases and it decreases as the confidence level increases_ 7 . For any set of measurements, what is the sum of the deviations of the measurements from their mean? It is a minimum value. C. 0 d. One must see the data
T /
) The measurement units of the standard deviation are the same as the measurements units of the original data
Of the articles produced by a certain machine, 3% are too big, and 2% are too small. What is the probability that an article chosen at random is of the right size?
10. A statistic is a numerical fact about Population
Sample