2. Mr. Bowen's test is normally distributed with a mean of 75 and a standard deviation of 3 points
Part A: What is the probability that a randomly selected score is greater
than 81 points
Part B: What percentage of students scores are between 69 and 78?
Part C: A student who scores a 84 is in the
percentile.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.