Answer:
13.42
Step-by-step explanation:
Answer:
x = 52.5
Step-by-step explanation:
4x + 6(10) = 4.32(x + 10)
4x + 60 = 4.32x + 43.20
0.32x = 16.8
x= 52.5
Answer:
The answer is explained below
Step-by-step explanation:
Given that:
mean (μ) = 7 and standard deviation (σ) = 1.5.
The z score is used in statistic used to measure the number of standard deviation by which the raw score is above or below the mean value. It is given by:

To find the Probability that x < 8.8, we first find the z score using:

From the z tables, P(x < 8.8) = P(z < 1.2) = 0.8849 = 88.49%