Answer:
0.25
Step-by-step explanation:
Answer:
The probability is 0.9938
Step-by-step explanation:
In this question, we are asked to calculate the probability that the mean blood pressure readings of a group of people is less than a certain reading.
To calculate this, we use the z score.
Mathematically;
z = (mean - value)/(standard deviation/√N)
From the question, we can identify that the mean is 125, the value is 123 , the standard deviation is 9.6 and N ( total population is 144)
Let’s plug these values;
z = (125-123)/(9.6/√144) = 2.5
Now we proceed to calculate the probability with a s score less than 2.5 using statistical tables
P(z<2.5) = 0.9938
Answer:
449 sq ft
Step-by-step explanation:
Answer:
d = 5 cm
Step-by-step explanation:
Volume of a rectangular prism: L*W*H
- L = 2 cm
- W = 2 cm
- H = d cm
- V = 20 cm³
Substitute the values above into the formula:
V = L*W*H
20 = 2*2*d
20 = 4d
/4 /4
5 = d
Therefore, the value of d is 5 cm.
Hope this helps!
The answer is A. The first one
