According to the historical data, the test scores on this test are normally distributed and has a mean of 70 with standard deviation of 10.   What mark (to the nearest whole number) must a candidate achieve in order to secure an interview?

Mike is a first year university student who is trying to understand his financial situation. Mike currently lives 1.5 miles away from campus. He works part time in a retail centre that pays him £800 per month. Mike saves £200 out of the part time job pay for his further education plan.

1. As to the below Travel Expenses table published by the Students’ Union, 185 students were randomly selected to help understand the travel expenses and distance to campus. What’s the probability for Mike to spend over £10 on journeys to campus?

After post-graduate study, Mike found a job as HR analyst in London. The company is currently recruiting Chief Marketing Officer. The HR department recently sent out a knowledge test to the applicants after the initial CV screening. At this stage of selection, the company does not invite the lowest scoring 30% back for the next face-to-face interview. According to the historical data, the test scores on this test are normally distributed and has a mean of 70 with standard deviation of 10.

1. What mark (to the nearest whole number) must a candidate achieve in order to secure an interview?

Please with comments as I need to learn how to do it! :)