Educational level Not high High school school Smoking habit College graduate graduate graduate Smoke 6. 18 14 19 Do not smoke 7 25 If an employee is selected at random, find these prob- abilities. a. The employee smokes, given that he or she gradu- ated from college. b. Given that the employee did not graduate from high he or she is a smoker.

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A random experiment consists of tossing a die and observing the number of dots showing up. Let A₁: number of dots showing up=3 A2: even number of dots showing up A3: odd number of dots showing up a. Are A2 and A3 disjoint? b. Are A and A3 independent?

Residence in the city are charge for water usage every three months the water bill is computed from a common fee along with the amount of water the customer uses the last water bill for 40 residence from two different neighborhoods are shown in the histogram below. which of the following is a true statement comparing the water bills of the two neighborhoods? more homes on front Street had water bills above 225 then on Pine Road more homes on Pine Road had water bills under 150 then on front Street more homes on Pine Road had water bill is above 200 then on front Street The same number of homes on both streets had water bills between 175 and 200

Which of the following statements about the histogram are true? Select all that apply.

Adela Noriegam, a researcher wants to determine how employee salaries at a certain company are related to the length of employment, previous experience, and education. The researcher selects eight employees from the company and obtains the following data:   Employee Salary,y Employment (in yrs), x1 Employment (in yrs), x2 Employment (in yrs), x3 A 57310 10 2 16 B 57380 5 6 16 C 54135 4 1 12 D 56985 6 5 14 E 58715 8 8 16 F 60000 20 0 12 G 59400 9 4 18 H 60720 15 7 17 What is the regression equation? Leave your answer in 2 decimal places Y = ()+() +() +

an you please answer drop down question, A, and B  A.  H0 = p1 or μ1 (=,<,>, ≠ ) p2 or μ2 H1=  p1 or μ1 (=,<,>, ≠ ) p2 or μ2 B. Z or T

es metal parts. She measures each part to confirm ean the part is too small, and positive numbers the numbers the mechanic records in order from 3 1 1 1 4 32 8 32 16 ) 16 ) 3 1 1 1 5 162 16 4 8 32 32 3. 1 5 8 32 4 2 16 16 32 2 3 1 5 1 16 32 32) 8 162 Done

Hi I am stuck, can I get help please

yansons lunch to go wants to know if there is a difference in customer satisfaction at any of the 3 locations. 500 customers were surveyed at each of the three locations, and the results of the survey is highlighted below dissatisfied one is 25 two is 10 and 3 is 40 satisfied one is 475 two is. 490 and three is 460. and totals are all 500. what is the correct degrees of freedom needed if you were to calculate X2 test statistic ?