Find the mean, median and mode of these numbers: [20 POINTS]
27, 16, 19, 32, 18, 21, 21, 12, 17, 22, 40, 19, 21, 32, 10, 11, 21
ANSWER:
1. Bennett Distribution Company, a subsidiary of a major appliance manufacturer, is forecasting regional sales for the next year. The Atlantic branch, with current yearly sales of $193.8 million, is expected to achieve a sales growth of 7.25 percent; the Midwest branch, with current sales of $79.3 million, is expected to grow by 8.20 percent; and the Pacific branch, with sales of $57.5 million, is expected to increase sales by 7.15 percent. What is the average rate of sales growth forecasted for the next year? [20 POINTS]
ANSWER:
3. Talent, Ltd., a Hollywood casting company, is selecting a group of extras for a movie. The ages of the first 20 men to be interviewed are
50 56 55 49 52 57 56 57 56 59
54 55 61 60 51 59 62 52 54 49
The director of the movie wants men whose ages are fairly tightly grouped around 55 years. Being a statistics buff of sorts, the director suggests that a standard deviation (s) of no more than 3.0 years would be acceptable. Does this group of extras qualify? [20 POINTS]
ANSWER:
4. A certain seed has a 75% germination rate. If seven seeds are planted, find the probability of having exactly six seeds germinate. [20 POINTS]
ANSWER:
5. The rhythm method of contraception is rated as 60% effective. Find the probability that it will be effective in each of five (5 out of 5) separate trials. [20 POINTS]
ANSWER:
gysgtclarke
stat1.docx
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