Second one tell me if im wrong
Answer:
Step-by-step explanation:
Given:
The attachment completes the question
From the attachment, the slope of the line was calculated as:
This step is inaccurate because the slope of a line is calculated using
Which gives
The line equation is then calculated using:
Substitute values for m, x1 and y1
Open bracket
Make y the subject
Answer:
0.010
Step-by-step explanation:
We solve the above question using z score formula
z = (x-μ)/σ, where
x is the raw score = 63 inches
μ is the population mean = 70 inches
σ is the population standard deviation = 3 inches
For x shorter than 63 inches = x < 63
Z score = x - μ/σ
= 63 - 70/3
= -2.33333
Probability value from Z-Table:
P(x<63) = 0.0098153
Approximately to the nearest thousandth = 0.010
Therefore, the probability that a randomly selected student will be shorter than 63 inches tall, to the nearest thousandth is 0.010.
Since it's an estimate, probably 103<span />
