Answer:
0.68268
Step-by-step explanation:
We solve using z score
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
For x = 85
z = 85 - 105/20
z = -1
Probability value from Z-Table:
P(x = 85) = 0.15866
For x = 125
z = 125 - 105/20
z = 1
Probabilty value from Z-Table:
P(x = 125) = 0.84134
The probability that a randomly selected adult has an IQ between 85 and 125 is calculated as:
P(x = 125) - P(x = 85)
= 0.84134 - 0.15866
= 0.68268
Hence, the amount saved by buying at Supergrocery A is; $6.10 - $4.76 = $1.34
<h3>Slope of Graphs;</h3>
According to the questions;
The cost to buy 1 pound of beef from the Supergrocery A is the slope of the given graph;
- Slope, m = (47.60 - 23.80)/(10-5)
Therefore, the cost per pound of beef at Supergrocery A is $4.76 which is cheaper than $6.10 at Supergrocery B.
Hence, the amount saved by buying at Supergrocery A is; $6.10 - $4.76 = $1.34
Read more on slope;
brainly.com/question/3493733
Answer: m = 6/5
Step-by-step explanation:
The Formula to find m is m = y2 - y1 / x2 - x1.
So for this problem I did 7 - 1 / -1 - (-6) which would equal 6/5.
divide 2 b 3
2 divided by 3 = 0.625
move decimal point 2 places to the right to turn to a percentage
0.625 = 62.5%
