Let n be the number of times she walked around the pond
(3 3/8) / (3/8) = n
=> 9 = n
Vanessa walked around the pond 9 times
Answer:
0.62% probability that a randomly selected person scores above 125 on the IQ test
Step-by-step explanation:
Problems of normally distributed samples can be 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 is the probability that a randomly selected person scores above 125 on the IQ test
This is 1 subtracted by the pvalue of Z when X = 125. So
has a pvalue of 0.9938
1 - 0.9938 = 0.0062
0.62% probability that a randomly selected person scores above 125 on the IQ test
Answer:
increase by 25 percent
Step-by-step explanation:
(50-40)/40 × 100%=25%
Answer:
33 is the width and 11 is the length
Step-by-step explanation:
the first thing that i did is to divide 88 by four which gives you 22.
that is the length if this is a square and since it is a rectangle and the length is 1/3 of the width.
then you divide 22 in half and get 11,
add 11 to 22 get 33.
subtract 11 from 22 get 11.
33 is the width 11 is the length
12 divided by 30 and you get .4 which is the same as 40%