Answer:
99.38%
Step-by-step explanation:
We have that the mean (m) is equal to 124, the standard deviation (sd) 6.4 and the sample size (n) = 64
They ask us for P (x <126)
For this, the first thing is to calculate z, which is given by the following equation:
z = (x - m) / (sd / (n ^ 1/2))
We have all these values, replacing we have:
z = (126 - 124) / (6.4 / (64 ^ 1/2))
z = 2.5
With the normal distribution table (attached), we have that at that value, the probability is:
P (z <2.5) = 0.9938
The probability is 99.38%
y+1=3(x-4)
Multiply the bracket by 3
y+1=3x-12
Follow y=mx+b Move +1 to the other side. Sign changes from +1 to -1
y+1-1=3x-12-1
y=3x-13
Slope=m = 3
b= y-intercept=-13
Answer: Slope=m=3- D.
Answer:
O C.
Step-by-step explanation:
O A. The number 8 is 5 more than 40.
O B. The number 40 is 5 less than 8.
O C. The number 40 is 5 times as many as 8.
O D. The number 5 is 8 times as many as 40.
it cannot be A because its addition im pretty sure.
it cannot be B because its subtraction
C and D are the same thing but just choose C
<u> </u>
<em>58 x 43 = 2494</em>
<u><em> </em></u>
<u><em>hope this helps!!</em></u>
