Campus Login McGraw-HI ALEKS-MAT300044VA016-1176-001 ALEKS HyPie Review Dictiona

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Campus Login McGraw-HI ALEKS-MAT300044VA016-1176-001 ALEKS HyPie Review Dictionary Calculator Book A job placement agency advertised that last year its clients, on average, had a starting salary of S38,500. Assuming that average refers to on this information? atements is true, mark the appropriate Note: More than one statement could be true. If none of the st box Last year some of their clients had a starting salary of less than $41,000. This year at least one of their clients will have a starting salary of at least $38,500. Last year some of their clients had a starting salary of exactly $38,500. Last year at least one of their clients had a starting salary of $38,500 or above. Last year more than half of their clients had a starting salary of at least $38,500. None of the above statements is true. 8 4

Explanation / Answer

Let's eliminate options by examples. (1 and 4 both are correct)

Let there be 4 clients for purpose of examples.

1) This must be true. Since the average is lower than $41,000. If all salaries were greater than 41000, the average would not be $38500 so atleast some have to be lower than 38500 or equal to 38500

2) Past year data can hardly promise what the situation will be like this year.

3)Not necessarily. Salaries of 54,000 , 30,000, 40,000, 30,000 will also give an average of $38500

4)This must be true. To verify let's keep salaries as 38,000 , 38000, 38000 and X. Now to achieve an average of 38500, fourth salary must be greater than 38500. X must be 40,000

Or all salaries must be equal to 38500. Either way this holds true

5)Not necessarily true. Let's say salaries were 20000, 20000, 20000, 94000 . this also gives an average of 38500

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