Question

1.The two branches of statistics are (1.1) a) dependent and independent c) descriptive and inferential 2.When we compute averages and standard deviations or graph data, we are b) population and sample d) ull and alternative workinq within a)descriptive statistics c) hypothesis testing 3. Which of the following groups is likely to have a lower standard deviation? b)inferential statistics d) statistical graphing (3.2) Group A: average heights of 13-year-old males Group B: average heights of 25-year old males a) Group A 4.In any distribution, which of the following situations cannot occur? a) The majority of scores lie below the mean b) The majority of scores lie below the median c) The majority of scores lie below the mode. d) All situations are possible. e) None of the above situations are possible. 5.Use the data below to find the mean, median and mode. Then rank them in b) Group B order from smallest to largest. (3.1) 17 3 11 13 5 8 16 17 a) median, mode, mean c) mean, median, mode e) Other 6.Describe the appearance of the histogram for the above data set. (2.2) a)normal c) left-skewed (negatively skewed) d) uniform 7. A z-score of -1.25 indicates that the x-value is 1.25 standard deviations b)mode, median, mean d) median, mean, mode b)right-skewed (positively skewed) H. (3.3) a) above b)below

Answer 1

Q 1) Answer: Option c) Descriptive and inferential

Q 2) Answer: Option a) Descriptive statistics

Q 3) Answer: Group B

Q 4) Answer: Option d) All situations are possible