Answer:
0.0323 = 3.23%. Is unusual
Step-by-step explanation:
Using the normal distribution we can find z value with the mean and standard deviation as follows. x is the value we want to know its probability
z = (x - mean)/standard deviation
z = (5-8.54)/1.91
z = -1.85
Using z tables for normal distribution, for z = 1.85, we have an area under the curve of 0.9677. Since we want to know the probability for 5 minutes or less, we have to substract from
p = 1- 0.9677
p = 0.0323
An event with a probability less than 5% is considered unusual.
Step-by-step explanation:
x=54
use pyth then the other line = 15
then 15÷90 = 9÷x
then x = 54
Answer:
The teahcer gave you 4/12 of a bag more than your friend.
Step-by-step explanation:
10/12 ---> 10/12
3/6 ---> 6/12
10/12 - 6/12 = 4/12
Answer:
11 at 2?
Step-by-step explanation:
Answer:
<h2>12/20 = 6/10 = 3/5</h2>
Step-by-step explanation:
