A couple wishes to have children until they have exactly two female children in their _family. Determine the expected number and variance of male children
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- If the probability of an injury is 0.19, the cost of the injury is $11,415, the insurer's loading costs are $4,300, and the number of policies is 381, then in a competitive insurance market, each policy will cost $_.A product shipment contains 6 computer chips, of which two (2) are defective. If an inspector selects 4 chips at random, without replacement, what is the probability that at least one of the defective chips will be selected? *Order does not matter.a bag contains 6 red marbles , 5 yellow marbles and 7 green marbles , how many additional red marbles must be added to the 18 marbles already in the bag so that the probability of randomly drawing a red marble is 3/5 ?
- A card is drawn randomly from a deck of ordinary playing cards. What is the probability that the card is a club or king? You may enter your answer as a fraction or a decimal rounded to three places. Preview TIP Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)A letter is known as to have come from either TATANAGAR or CALCUTTA. On the envelope, just two consecutive letters 'TA' are visible. Find the probability that the letter has come from CALCUTTA.A geneticist constricts an experiment with peas, one sample of offspring consisted of 460 green peas and 143 yellow peas. Based on the results, estimate the probability of getting an offspring pea that is green. Give answer using the appropriate rounding rule
- UCLA conducted a survey of more than 263,000 college freshmen from 385 colleges in fall 2005. The results of students' expected majors by gender were reported in The Chronicle of Higher Education (2/2/2006). Suppose a survey of 5,000 graduating females and 5,000 graduating males was done as a follow-up last year to determine what their actual majors were. The results for males are shown in the table below. The second column in the table does not add to 100% because of rounding.Conduct a goodness-of-fit test to determine if the actual college majors of graduating males fit the distribution of their expected majors. (Use a significance level of 0.05.) Major Men - Expected Major Men - Actual Major Art & Humanities 11.0% 600 Biological Sciences 6.7% 330 Business 22.7% 1,130 Education 5.8% 305 Engineering 15.6% 800 Physical Sciences 3.6% 175 Professional 9.3% 460 Social Sciences 7.6% 370 Technical 1.8% 90 Other 8.2% 400 Undecided 6.6% 340 Part (a)…80% of the voters favor Ms. Stein. If 3 voters are chosen at random, find the probability that all 3 voters support Ms. Stein. The probability that all 3 voters support Ms. Stein is _.A committee of 7 is to be selected from 8 Chemists and 9 Biologists. What is the probability of selecting no more than 5 Biologists on the committee?
- If you draw five cards at random from a standard deck of 52 cards, what is the probability that there are at least 4 distinct characters (letters or numbers)? Report answer to 3 decimal places.UCLA conducted a survey of more than 263,000 college freshmen from 385 colleges in fall 2005. The results of students' expected majors by gender were reported in The Chronicle of Higher Education (2/2/2006). Suppose a survey of 5,000 graduating females and 5,000 graduating males was done as a follow-up last year to determine what their actual majors were. The results for females are shown in the table below. The second column in the table does not add to 100% because of rounding.Conduct a goodness-of-fit test to determine if the actual college majors of graduating females fit the distribution of their expected majors. (Use a significance level of 0.05.) Major Women - Expected Major Women - Actual Major Art & Humanities 14.0% 670 Biological Sciences 8.4% 410 Business 13.1% 685 Education 13.0% 650 Engineering 2.6% 145 Physical Sciences 2.6% 125 Professional 18.9% 975 Social Sciences 13.0% 605 Technical 0.4% 15 Other 5.8% 300 Undecided 8.0% 420 Part…A 10-year study conducted by the American Heart Association provided data on how age, blood pressure, and smoking relate to the risk of strokes. Data from a portion of this study follow. Risk is interpreted as the probability (times 100) that a person will have a stroke over the next 10-year period. For the smoker variable, 1 indicates a smoker and 0 indicates a nonsmoker. *image for data* Using age, blood pressure, and whether a person is a smoker, develop an estimated regression equation that can be used to predict risk. Use x1 for age, x2 for blood pressure, and x3 for whether a person is a smoker. (Round your constant term to one decimal place and coefficients to three decimal places.)
