EHS 280 Midterm LastName Sectiona 18) The payroll amounts for 26 major-league ba

Question

EHS 280 Midterm LastName Sectiona 18) The payroll amounts for 26 major-league baseball teams are shown below. Approximately what Percentage (%) of the payrolls were in the S20-S40 million range? Payroll of Basoball Teams in millions of dollars) 12- 10 $0-10 $10 20 $20.50 $50.40 540.50 A)31% B)896 C)69% D) 18% E)20-40% 19) Which measure of central tendency is not resistant to extreme numeric values? 19) A) Mean B) Mode C) Median D) Parameters 20) What is the shape of the distribution? A) symmetric B)Uniform C)Skewed Left D)Skewed Right 20 21) Your score on GRE standardized test is the 39h percentile What percentage of test takes scored better than you? B)38% A)47.5% C)39% D)61% 21) 22) A medical researcher wishes to determine if there is a relationship between the number of prescriptions written by medical professionals, per 100, children and the child's age. She surveys all the pediatricians in a geographical region to collect her data. What is the response variable? A) Age of the child C) Pediatricians surveyed B) Number of prescriptions written D) 100 prescriptions 22) 23) Which of the following measures is not a measure of dispersion? A) Mean C) Variance B) Standard deviation D) Range 23)

Explanation / Answer

(18)

Correct option:

C) 69%

EXPLANATION:

20 - 30 is 10. 30-40 is 8.

So, in 20 - 40, it is : (10 + 8)/26 = 18/26 = 69%

(19)

Correct option:

(C) Median

(20) Correct option:
(C) Skewed left

(21) Correct option:

(D) 61%

(22) Correct option:

(B) Number of presciptions written

(23) Correct option: (A) Mean

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