Answer:
0.62
Step-by-step explanation:
There are a total of 10 marbles in the bag.
P(blue and not blue) = 5/10 × 5/10 = 25/100
P(red and not red) = 2/10 × 8/10 = 16/100
P(green and not green) = 3/10 × 7/10 = 21/100
P = 25/100 + 16/100 + 21/100
P = 62/100
P = 0.62
Alternatively, you can calculate it this way:
P(both blue) = (5/10)² = 25/100
P(both red) = (2/10)² = 4/100
P(both green) = (3/10)² = 9/100
P = 1 − (25/100 + 4/10 + 9/100)
P = 1 − 38/100
P = 62/100
P = 0.62
Answer:
10.20% probability that a randomly chosen book is more than 20.2 mm thick
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:
250 sheets, each sheet has mean 0.08 mm and standard deviation 0.01 mm.
So for the book.

What is the probability that a randomly chosen book is more than 20.2 mm thick (not including the covers)
This is 1 subtracted by the pvalue of Z when X = 20.2. So



has a pvalue of 0.8980
1 - 0.8980 = 0.1020
10.20% probability that a randomly chosen book is more than 20.2 mm thick
The total percentage of the equation is 1,597.72
Answer:
I think the answer is B 23,345
The distance around a figure is called the perimeter.
Hope this helps :)