MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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.....help with questions a-d please.
 
b. Find the probability of getting 1 or fewer girls in 8 births.
​(Type an integer or a decimal. Do not​ round.)
 
 
c. Which probability is relevant for determining whether 1 is a significantly low number of girls in 8​ births: the result from part​ (a) or part​ (b)?
A. Since the probability of getting more than 1 girl is the complement of the result from part​ (b), this is the relevant probability.
 
B. Since getting 0 girls is an even lower number of girls than getting 1​ girl, the result from part​ (b) is the relevant probability.
 
C.Since the probability of getting 0 girls is less likely than getting 1​ girl, the result from part​ (a) is the relevant probability.
 
D.Since the probability of getting 1 girl is the result from part​ (a), this is the relevant probability.
 
D. Is 1 a significantly low number of girls in 8​ births? Why or why​ not? Use 0.05 as the threshold for a significant event.
 
A.​No, since the appropriate probability is less than​ 0.05, it is not a significantly low number.
 
B.​Yes, since the appropriate probability is greater than​ 0.05, it is a significantly low number.
 
C.​No, since the appropriate probability is greater than​ 0.05, it is not a significantly low number.
 
D.​Yes, since the appropriate probability is less than​ 0.05, it is a significantly low number.
The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random
variable x represents the number of girls among 8 children. Complete parts (a) through (d) below.
Click the icon to view the table.
Probability Distribution for x
- X
a. Find the probability of getting exactly 1 girl in 8 births.
| (Type an integer or a decimal. Do not round.)
Number of
Girls x
P(x)
0.002
0.006
0.116
0.234
4
0.284
0.234
0.116
7
0.006
8
0.002
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Transcribed Image Text:The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) through (d) below. Click the icon to view the table. Probability Distribution for x - X a. Find the probability of getting exactly 1 girl in 8 births. | (Type an integer or a decimal. Do not round.) Number of Girls x P(x) 0.002 0.006 0.116 0.234 4 0.284 0.234 0.116 7 0.006 8 0.002
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