Jump to level 1 You are dealt a randomly chosen 9 card hand from a standard playing deck. The score S for a hand is 2 times the number of kings minus 5 times the number of clubs. What is the expected value of S? E[S] = Ex: 1.23
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- Rubber Balls in a Box Setup Stars Stripes Dots Red 15 12 Blue 7 3 14 Green 2 6 Experiment: The rubber balls all have the same size, texture, weight, etc. They cannot be distinguished without looking at them. The rubber balls are mixed around thoroughly in the box. One rubber ball is to be drawn randomly. Let X = the color on the rubber ball. Let Y = the pattern on the rubber ball. %3D %3| 5. Use the Rubber Balls in a Box Setup. Find P(X = Blue AND Y = Dots ). This is a short answer question. The correct answer is a fully simplified fraction.50 Jiual 3 (mean-median) The given formula 1s measure of s.d. Karl Pearson of skewness Bowley's coefficient of skewness Kurtosis QuartilesCorrelations Time to Engine Miles per Displacement Accelerate Vehicle from 0 to 60 (cu. inches) Horsepower Weight (Ibs.) mph (sec) -.789 Gallon Miles per Gallon Pearson Correlatio -.771** -.807* .434** Sig. (2-tailed) .000 .000 .000 .000 N 398 398 392 398 398 Engine Displacemen Pearson Correlatio (cu. inches) -.789** 1 .897** .933** -.545 Sig. (2-tailed) .000 .000 .000 .000 N 398 408 400 406 406 Horsepower Pearson Correlatio -.771* .897* 1 .859* -.701* Sig. (2-tailed) .000 .000 .000 .000 N 392 400 400 400 400 Vehide Weight (Ibs.) Pearson Correlatio -.807 .933 .859*1 1 -.415 Sig. (2-tailed) .000 .000 .000 .000 398 408 400 406 408 Time to Accelerate Pearson Correlatio .434* -.545* -701 -415 1 from 0 to 60 mph (se Sig. (2-tailed) .000 .000 .000 .000 N 398 408 400 408 406 **. Correlation is significant at the 0.01 level (2-tailed). What two words would you use to describe the relationship between horsepower and vehicle weight?
- hapter 1, Section 2, Exercise 041 The population is the approximately 29,000 protein-coding genes in human DNA. Each gene is assigned a number (from 1 to 29,000), and computer software is used to randomly select 500 of these numbers yielding a sample of 500 genes.State whether or not the sampling method described produces a random sample from the given population. Random Not randomShow all working explaining detailly each step Answer must be typewritten with a computer keyboard! Answer 6Explain it properly When Ho is not rejected, the data supports-_____________________ . When Ho is rejected, the data supports _______________________________
- H0 (null hypothesis): μ1 = μ2 = μ3 = μ4 = μ5 (all the population means are equal)H1 (null hypothesis): at least one population mean is different from the rest Where μ1, μ2, μ3, μ4, μ5 are average daily returns (on the stock you are assigned) on MON, TUE, WED, THR, and FRI respectively. Please explain your answer.Computing the Z-test Statistic The State College is evaluating a new English composition course for freshmen. A random sample of n = 25 freshmen is selected from the State College. All 25 students are placed in the new English composition course during their first semester. One year later, a writing sample is obtained for each student and their writing samples are graded using a standardized evaluation technique. The average score for the sample is M= 76. For the general population of the State College, writing scores form a normal distribution with a mean = 70 and a standard deviation = 20. Please calculate the appropriate hypothesis test using all four steps?