A test has a mean of 65 with standard deviation of 5. What percent of the
students would you expect to receive a grade of 60 or less?

16%

Step-by-step explanation:

The test has a mean of 65 with standard deviation of 5.

We want to find the percent of the

students we expect to receive a grade of 60 or less.

We can use the empirical rule to solve this question.

According to the Empirical rule , 68% within one standard deviation.

This means that 68% fall within one standard deviation below and above.

Hence just one standard deviation below will 34%. (60 to 65).

Therefore the percentage falling below 60 will be 50%-34%=16%

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4