0the data set with the results of a test for 1000 students is approximated by a bell curve.
the mean score was 72%. the standard deviation was 7%. based on this information, what is the best approximation for the number of students who scored 80% or better?
16
159
309
800

step-by-step explanation:

we can expect approximately 12.65% of them to have a score of at least 80%.

77

step-by-step explanation:

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.