Answer:
b. 0.12
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 is the probability that a seed will take more than 720 hours before germinating?
This is 1 subtracted by the pvalue of Z when X = 720. So
has a pvalue of 0.88.
1 - 0.88 = 0.12
So the correct answer is:
b. 0.12
All except combine like terms. Since you only have 1 variable.
Hope this helps.
r3t40
Answer:
1/2
Step-by-step explanation:
4/8 are red. If you simplify that you get 1/2.
To find out how many pages she needs to read everyday, you have to divide.
128.5/4.5 = 28.55
So your answer is B) 28.55
Hope this Helps!!
Formula for compound interest is stated as follows:
A = P(1+r)^n; where A = Amount in the bank after compounding, P = Principal amount deposited in the account, r = annual interest rate as a decimal, n = number of years to accumulate amount A in the account.
Using the values given;
9090 = P(1+0.058)^5
P = 9090/[(1+0.058)^5] = 9090/1.3256 = 6857.02
Therefore, the amount put in the account must be $6,857.02
