Question

In: Statistics and Probability

The percent of blue-eyed people in the US is estimated to be about 15%. A random...

The percent of blue-eyed people in the US is estimated to be about 15%. A random sample of 20 Providence College students is taken.
a) Use the binomial distribution to find the probability that [Round to 4 decimal places .XXXX]
(i) None of the 20 students have blue eyes.
(ii) at most 5 have blue-eyes
(iii) 3 or more have blue-eyes
b )Find the expected number of students who would have blue-eyes in a random sample of 20.

Solutions

Expert Solution


Related Solutions

A brown-eyed, right-handed man marries a blue-eyed, right-handed woman. Their first child is blue-eyed and left-handed....
A brown-eyed, right-handed man marries a blue-eyed, right-handed woman. Their first child is blue-eyed and left-handed. What are the chances of having another child who is blue-eyed and left-handed? A) 25 B) 12.5 C) 75 D) 50
Dimples is dominant over smooth cheeks, and brown eyes are dominant to blue. A blue-eyed woman...
Dimples is dominant over smooth cheeks, and brown eyes are dominant to blue. A blue-eyed woman with dimples (both her parents had brown eyes, her mother had dimples and her father had no dimples) marries a brown-eyed man with dimples (his father had blue eyes and dimples, his mother had brown eyes and no dimples). What is the probability that their first child will have blue eyes and dimples? a. 1/4 b. 1/2 c. 3/8 d. 3/4 e. 1/8
Random samples of people ages 15−24 and of people ages 25−34 were asked about their preferred...
Random samples of people ages 15−24 and of people ages 25−34 were asked about their preferred method of (remote) communication with friends. The respondents were asked to select one of the methods from the following list: cell phone, instant message, e-mail, other. Preferred Communication Method Age Cell Phone Instant Message Email Other Row Total 15-24 47 45 3 5 100 25-34 43 28 16 13 100 Column Total 90 73 19 18 200 (i) Make a cluster bar graph showing...
Blue-eyed Mary is a small wildflower whose petals may have one of three colors: blue, pink,...
Blue-eyed Mary is a small wildflower whose petals may have one of three colors: blue, pink, or white. Petal color is determined by the action of two independently assorting gene loci:
 Deposit pigment (D/d)
 D (fully dominant) = deposit pigment in petals d (fully recessive) = do not deposit pigment in petals; petals are white
 Blue pigment (B/b)
 B (fully dominant) = pigment deposited in petals is blue
 b (fully recessive) = pigment deposited in petals is pink
 A (3)....
It is estimated that, of the people viewing a certain movie over the weekend, 45 percent...
It is estimated that, of the people viewing a certain movie over the weekend, 45 percent were adult women, 42 percent were adult men, and 13 percent were children. If we randomly interview people at a theatre about the movie, each interview takes a few minutes, so we will not interview people in the same group or family. So we may assume that their gender and age classification is independent from person to person. a. What is the probability that...
The CDC estimates that 20% of people in the US between the ages of 15 and...
The CDC estimates that 20% of people in the US between the ages of 15 and 24 have an STI. Suppose we do a test at a local college campus and find that 11 out of 117 people tested have an STI. Is this random variation or does this school have a lower than average level of infection? What test should we perform and why? What is your null and alternative hypothesis? Perform the test. What is the test statistic...
Question text In a random sample of 200 people, 32 people have blue eyes (characteristic B)....
Question text In a random sample of 200 people, 32 people have blue eyes (characteristic B). Which of the following 95% confidence intervals estimate the true proportion pp of measurements in the population with characteristic B? Select one: a. (0.109, 0.211) c. (0.431, 0.712) d. (0.561, 0.912)
22% of US adults use Twitter. A random sample of 15 US adults is selected. a)...
22% of US adults use Twitter. A random sample of 15 US adults is selected. a) Find the probability that the sample contains exactly 4 Twitter users. b) Find the probability that at least one US adult in the sample uses Twitter. c) Find the mean and standard deviation for the number of US adults using Twitter.
Random samples of people ages 15-24 and 25-34 were asked about their preferred method of communication...
Random samples of people ages 15-24 and 25-34 were asked about their preferred method of communication with friends. The respondents were asked to select one of the methods from the following list: cell phone, instant message, e-mail, other. Age                  Cell Phone                   Instant Message                     E-Mail             Other                         Obs., Exp                     Obs., Exp                                 Obs., Exp         Obs., Exp 15-24               48                                40                                            5                      7 25-34               41                                30                                            15                    14 Test whether the two populations share the same proportions of preferences for each type...
1.botanical facts about black-eyed peas and botanical ingredients found in black-eyed peas 2. nutritional value of...
1.botanical facts about black-eyed peas and botanical ingredients found in black-eyed peas 2. nutritional value of black-eyed peas and secondary metabolites of black-eyed peas 3. how is black-eyed pea cultivated or made 4. botanical facts about kidney beans and botanical ingredients found in kidney beans 5. nutritional value of kidney bean sand secondary metabolites of kidney beans 6. how are kidney beans made or cultivated 7. botanical facts about chickpeas and botanical ingredients found in chickpeas 8. nutritional value of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT