Answer:
46.667% increase of 30.
Step-by-step explanation:
44 is a 46.667% increase of 30.
Answer:
99.89% of students scored below 95 points.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

What percent of students scored below 95 points?
This is the pvalue of Z when X = 95. So



has a pvalue of 0.9989.
99.89% of students scored below 95 points.
Answer: I would say 20%, it makes 100 percent sense!
Step-by-step explanation: Please brainliest!
Answer:
256m^2.
Step by step:
Well now let’s find the area of a square which is 8*8 = 64.
And now let’s find the area of a triangle using the formula 12*8 / 2 = 48.
And since there is 4 sides we multiply 48 by 4 which is 192.
so 192 + 64 is 256m^2.