An aptitude test was given to a random sample of 175 applicants for a training p

Question

An aptitude test was given to a random sample of 175 applicants for a training program. The results are shown below, where x is the score on a 4-point scale and f is the frequency of people with that score. ( in decimal form-3 decimal places) X:1 2 3 4 f: 17 53 58 47 1. To be accepted into a training program, students must have a score of 3 or higher. What is the probability that an applicant selected at random will have this score? 2. To receive a tuition scholarship a student needs a score of 4. What is the probability that an applicant selected at random will have this score?

Explanation / Answer

here

probability that an applicant selected at random will have this score =P(X>=3)=0.331+0.269=0.6

2) probability that an applicant selected at random will have this score=0.269

X f P(X)=f/total f Cum P(x)=F(X) 1 17 0.097 0.097 2 53 0.303 0.400 3 58 0.331 0.731 4 47 0.269 1.000 175

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