Mathematics, 04.11.2019 20:31 jaylahlove77
Acommittee of three people is to be chosen from four married couples. what is the number of different committees that can be chosen if two people who are married to each other cannot both serve on the committee?
Answers: 1
Mathematics, 21.06.2019 17:30
Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?
Answers: 3
Mathematics, 21.06.2019 22:30
Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?
Answers: 1
Mathematics, 22.06.2019 02:30
According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: ÎĽ=6.4 and ha: ÎĽ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.
Answers: 3
Mathematics, 22.06.2019 04:10
If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?
Answers: 3
Acommittee of three people is to be chosen from four married couples. what is the number of differen...
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