Objective questions choose either A,B,C,D i) The sum of deviations taken from arithmetic mean is? A) Minimum B) Zero C) Maximum D) None of these options ii) The following histogram shows the distribution of the difference between the actual and “ideal” weights for 119 female students. What is the approximate shape of the distribution? Nearly symmetric. B) Skewed to the left. C) Skewed to the right. D) Bimodal iii)A numerical value used as a summary measure for a sample, such as a sample mean, is known as a: A) Parameter B) Statistics C) Population D) Statistic
Objective questions choose either A,B,C,D
i) The sum of deviations taken from arithmetic mean is?
A) Minimum B) Zero C) Maximum D) None of these options
ii) The following histogram shows the distribution of the difference between the actual and “ideal” weights for 119 female students.
What is the approximate shape of the distribution?
Nearly symmetric. B) Skewed to the left. C) Skewed to the right. D) Bimodal
iii)A numerical value used as a summary measure for a sample, such as a sample mean, is known as a: A) Parameter B) Statistics C) Population D) Statistic
iv) Consider the results of a Statistics final exam taken by 100 students, as given in the following relative frequency distribution: How many students received at least a 70 on this exam?
|
Grade |
> 50 |
50-59 |
60-69 |
70-79 |
80-89 |
90-100 |
|
Frequency |
15 |
10 |
30 |
25 |
15 |
5 |
A) 45 B) 25 C) 30 D) 66
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