alyxxboothe

15.07.2019 • 

Mathematics

Asurvey of mba students reveals that among gmat scorers above 650, 52% took a preparatory course, whereas among gmat scorers of < 650 only 23% took a preparatory course. an applicant to an mba program has determined that she needs a score of more than 650 to get into a certain mba program, but she feels that her probability of getting the desired score is 30%. she is considering taking a preparatory course that cost $500. she is willing to do so only if her probability of achieving 650 or more becomes higher than 50%. calculate this probability.

Ответ:

lexy5211

20.05.2020

Mathematics

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let n be the first integer. then the next five integers are n+1, n+2..n+4. the next three are n+5..n+7. so:

n+n+1+n+2+n+3+n+4=n+5+n+6+n+7

5n+10=3n+18

2n=8

n=4

the largest number is n+7, or 11.

step-by-step explanation:

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