Assignment 2-Statistics 424 5. What is the range of IQ scores for males? a. 45 b
ID: 3070079 • Letter: A
Question
Assignment 2-Statistics 424 5. What is the range of IQ scores for males? a. 45 b. 12 c. 20 d. 62 e. Could not be determined 6. What is the highest IQ score for females? a. 137 b. 100 C. 128 d. 101.82 e. Could not be determined 7. If we assume that the males' distribution of 1Q scores is skewed to the right, what is the most appropriate measure of the center and spread to describe it with? a. The mean and standard deviation b. The five number summary c. The median and standard deviation d- The mean and interquartile range e. None of the above 8. What type of graphs) would clearly illustrate a bimodal distribution? a. Boxplot b. Histogram c. Stem and leaf diagram (stemplot) d. Bar graph e. Both 'b' and'cExplanation / Answer
Here' the answer to the question with full concept. Please don't hesitate to give a "thumbs up" in case you're satisfied with the answer
Please refer to the table of results for this. We will answer the below question after referring this table.
5. Range for male is given to be 62 in the table. d. is correct
6. The maximum statistic under female is 128. This is the highest IQ score for females. Hence, c is correct
7. Best measures for skewed distribution is the median and spread' best measure in case of skewed distribution is Interquartile range. d. option is correct.
8. Bimodal distribution will have 2 peaks and any frequency distribution chart like histogram and steam and leaf diagram will give us that. e. is correct
9. p(x>=90) = ?
from thw stem and leaf plot we have: ((55-14)+(33-7))/(55+33) = .76
c. is correct, and hence is the right answer.
10. e is correct. All 3 methods help establish cause & effect relationship
1. By percent of men and women plot we know 37.5% of total people are women
d. is correct
2. 55 males are there. Just add the frequency in the Male stem plot. a. is correct
3. e. is correct. Measures of spread are given out to be std dev of 13.192 of males
and 12.677 for females.
4. Refer boxplot of males. Point beyond whisker can be seen in the upper bound of the plit.
Hence, b. is correct