n a family of five children where there are no multiple births and only a boy or girl is possible at each birth and either is equally probable find the expected value for the number of girls.
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n a family of five children where there are no multiple births and
only a boy or girl is possible at each birth and either is equally
probable find the
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- Suppose 50% of the registered voters in a country are Republican if a sample of 598 voters is selected what is the probability that the simple proportion of republicans will be greater than 47% round your answer to 4 decimal placesAccording to government data, 40% of married American married after 40. A study of married people chooses a random sample of 500 married American and asks each person in the sample the age at marriage. What is the expected number of married Americans in this sample that married after 40?There are two bags containing several colored balls. The bag B, contains 10 red balls, 12 blue balls, and 13 green balls. The bag B, contains 20 red balls, 19 blue balls and 19 green balls. A student of your class wanted to draw 1 red ball and 3 blue balls. i. If he has the option to draw from only bag B1, what is the probability of drawing the four balls? [Give your answer upto 4 decimal places] ii. If he can choose any bag in an equiprobable manner, what is the probability of drawing the four balls in this case? [Give your answer upto decimal places] 4
- A factory received a shipment of 15 capacitors, and the vendor who sold the items knows there are 8 capacitors in the shipment that are defective and 7 are not defective. Before the receiving foreman accepts the delivery, he samples the shipment, and if too many of the capacitors in the sample are defective, he will refuse the shipment. Give answer as a decimal to four decimal places.(a) If a sample of 6 capacitors is selected, find the probability that all in the sample are defective. (b) If a sample of 6 capacitors is selected, find the probability that 4 in the sample are defective. (c) If a sample of 3 capacitors is selected, find the probability that 1 in the sample are defective.The probability that a person in the United States has type B+ blood is 8%. Five unrelated people in the United States are selected at random. Complete parts (a) through (d). (a) Find the probability that all five have type B+ blood. The probability that all five have type B+ blood is nothing. (Round to six decimal places as needed.) (b) Find the probability that none of the five have type B+ blood. The probability that none of the five have type B+ blood is nothing. (Round to three decimal places as needed.) (c) Find the probability that at least one of the five has type B+ blood. The probability that at least one of the five has type B+ blood is nothing. (Round to three decimal places as needed.) (d) Which of the events can be considered unusual? Explain. Select all that apply. A. The event in part (a) is unusual because its probability is less than or equal to 0.05. B. The event in part (b) is unusual because its probability is…A bag contains 2 red balls worth £3, 2 blue balls worth £2 and 5 green balls worth £0. You pick 1 ball out of the bag (without replacement). What the expected value of earnings from playing this game once (3 decimal places).
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