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 children. Complete parts (a) through (d) below. Click the icon to view the table. a. Find the probability of getting exactly 1 girl in 8 births. (Type an integer or a decimal. Do not round.) 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)? O A. Since the probability of getting 1 or fewer girls is the result from part (a), this is the relevant probability. O B. Since the probability of getting 1 girl is the result from part (a), this is the relevant probability. OC. Since the probability of getting 1 or fewer girls is the result from part (b), this is the relevant probability. O D. Since the probability of getting 1 girl is the result from part (b), 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. O A. No, since the appropriate probability is greater 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. O C. Yes, since the appropriate probability is less than 0.05, it is a significantly low number. O D. No, since the appropriate probability is less than 0.05, it is not a significantly low number. Probability Distribution for x Number of Girls x P(x) 0.002 1 0.016 0.103 0.201 0.356 4 0.201 6 0.103 7 0.016 8 0.002 Print Done
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 children. Complete parts (a) through (d) below. Click the icon to view the table. a. Find the probability of getting exactly 1 girl in 8 births. (Type an integer or a decimal. Do not round.) 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)? O A. Since the probability of getting 1 or fewer girls is the result from part (a), this is the relevant probability. O B. Since the probability of getting 1 girl is the result from part (a), this is the relevant probability. OC. Since the probability of getting 1 or fewer girls is the result from part (b), this is the relevant probability. O D. Since the probability of getting 1 girl is the result from part (b), 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. O A. No, since the appropriate probability is greater 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. O C. Yes, since the appropriate probability is less than 0.05, it is a significantly low number. O D. No, since the appropriate probability is less than 0.05, it is not a significantly low number. Probability Distribution for x Number of Girls x P(x) 0.002 1 0.016 0.103 0.201 0.356 4 0.201 6 0.103 7 0.016 8 0.002 Print Done
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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.
E Click the icon to view the table.
a. Find the probability of getting exactly 1 girl in 8 births.
(Type an integer or a decimal. Do not round.)
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)?
O A. Since the probability of getting 1 or fewer girls is the result from part (a), this is the relevant probability.
O B. Since the probability of getting 1 girl is the result from part (a), this is the relevant probability.
OC. Since the probability of getting 1 or fewer girls is the result from part (b), this is the relevant probability.
O D. Since the probability of getting 1 girl is the result from part (b), 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.
O A. No, since the appropriate probability is greater than 0.05, it is not a significantly low number.
O B. Yes, since the appropriate probability is greater than 0.05, it is a significantly low number.
O C. Yes, since the appropriate probability is less than 0.05, it is a significantly low number.
O D. No, since the appropriate probability is less than 0.05, it is not a significantly low number.
- X
Probability Distribution for x
Number of
Girls x
P(x)
0.002
1
0.016
2
0.103
3
0.201
4
0.356
0.201
0.103
7
0.016
8.
0.002
Print
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