Answer:
The probability is 0.017429
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)/SD/√n
In this case;
x = 273
mean = 276
SD = √(variance) = √81 = 9
n = 40
Substituting these values into the z-score formula, we have that;
z = (273-276)/9/√40
z = -2.11
So we proceed to get the probability
the probability in this case is;
P( z < -2.11)
We can use the normal distribution table for this
Our answer will be
P( z < -2.11) = 0.017429
The answer should be b¹². You add the exponents of each constant. In the case of the simple b the exponent would be one.
Answer is about 3 times
About 3 times in April bc it’s saying It rained two times out of the 12 days in March in there about 30 days in March and 30 days in April so if you just add 12 and 12 equals 24 so it rained 4 times but if you are 12 it would equal 36 so if you would take half of 12 which is sixto equal one rainy day it would give you about 3 days
19 mathematically
21 if you want a joke
Answer:
Step-by-step explanation:
The subtraction of a number from itself gives zero. The first blank is filled with the number 5.9, so when that value is subtracted from 5.9, the result is zero.
Adding or subtracting zero changes nothing. The second blank is filled with 3.9, the number from which nothing is subtracted.