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
The first one is 2x+y=-1
the second one is 13x+2y-1=0
Answer: There are 27 minivans out of the vehicles in the parking lot.
Step-by-step explanation:
Since we have given that
Number of vehicles in a parking lot = 45
Part of the vehicles are minivans is given by
Number of vehicles in the parking lot are minivans is given by
Hence, there are 27 minivans out of the vehicles in the parking lot.
L = -4,4
E = -2, -3
N = 2,1
I = 4,3
E = 1,3
Answer:
The formula for circumference: 2rpi
PB = r = 29m
The circumference of circle P is:
2(29)pi
=58pi