تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
The table below gives the number of suicides estimated in the U.S. for a recent year by age, race (black or white), and sex. We are interested in
possible relationships between age, race, and sex. We will let suicide victims be our population.
Race and Sex 1-14 15-24 25-64 over 64 TOTALS
white, male
210 3,355 13,615
22,050
white, female 80
580 3,375
4,930
black, male
black, female 0
10
455
1,055
1,670
45
270
330
all others
TOTALS
310 4,650 18,780
29,760
Part (a)
Fill in the column for the suicides for individuals over age 64 and fill in the row for all other races.
Race and Sex 1-14
15-24
25-64
over 64
TOTALS
white, male
210
3,355
13,615
22,050
white, female 80
580
3,375
4,930
black, male
10
455
1,055
1,670
black, female
0
45
270
330
all others
TOTALS
310
4,650
18,780
29,760
Part (b)
Find the probability that a randomly selected individual was a white male. (Enter your probability as a fraction.)
Part (c)
Find the probability that a randomly selected individual was a black female. (Enter your probability as a fraction.)
Part (d)
Find the probability that a randomly selected individual was black. (Enter your probability as a fraction.)
Part (e)
Find the probability that a randomly selected individual was male. Do not include "all others" as male individuals. (Enter your probability as a fraction.)
Part (f)
Out of the individuals over age 64, find the probability that a randomly selected individual was a black or white male. Do not include "all others" as black or white male
individuals. (Enter your probability as a fraction.)
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