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- cimal places as needed.) e probability distribution. Choose the correct graph below. О В. Ideal number of children data Ideal Number of Children 0.6- 0.5 0.4- 0.3- 0.- 0.1- x (# of children) Frequency 11 31 5 6 012 3 45 6 514 dren Number of Children 259 67 erpret the mean of the random variable X. 16 9. ldren. mal place as needed.) ing interpretations of the mean is correct? Print Done ults were surveyed, one would expect the mean ideal number of childre ber of adults were surveyed, one would expect the mean ideal number ved ideal number of children will be equal to the mean ideal number of children for most adults. rved ideal number of children will be less than the mean ideal number of children for most adults. standard deviation of the random variable X. eviation is children. decimal place as needed.) 123 A 56 65432 10 Probabilitycalculated that the taxi drivers spent average 9.25 hours in a day assume that the distribution is normal for each taxi drivers a sample size is 16 taxi drivers the population standarddeviation is was known to be 1.2565 find the sample m,ean below 10Section of an oil field has been divided into 48 equal sub-areas. Counting the oil wells in the 48 sub-areas gives the following frequency distribution : Number of 0 1 2 3 4 5 6 7oil wellsNumber of 5 10 11 10 6 4 0 2sub-areasIs there any evidence from these data that the oil wells are not distributed randomly throughout the section of the oil field?
- QuestionThree Marbles are drawn without replacement from an urn containing 4 red and 6 white marbles. If X is a random variable that denote the total number of red marble drawn (A) construct a table showing the probability of distribution of x(B) graph the distribution28Q-18: What is symmetrical, right skewed and left skewed distribution and its properties? What is leptokurtic, mesokurtic and platykurtic distribution and its properties?
- Q1- For each claim, write null hypothesis and alternative hypothesis in words and symbols (, = etc). Then determine if the test is left-tailed, right-tailed or two-tailed test. Sketch a normal distribution for sampling and determine the acceptance and rejection regions for the null hypothesis. a) An high school advertizes that the proportion of its students who are involved in at least one extracurricular activity (such as sports, arts etc) is 62%. b) A company advertizes that the mean life of its furnaces is more than 15 years. c) A medical research team claims that the mean recovery time for patients after a new treatment technique is less than 95 hours.For the scenarios listed in photo. determine whether the binomial distribution is the appropriate distribution for the random variable X? Then show full work explaining what the probability (p-value) that X equals 8 if X is a binomial random variable with distribution B(10, 0.7).Multiple choice