The z-score for 55.2 is 0.25.
Explanation: Using the Standard Normal Table, the area to the left of 0.25 is 0.5987, and the area to the left of 0.5 is 0.6915. As 0.6915−0.5987=0.0928, the probability that the sample mean is in between 55.2 inches and 55.4 inches is approximately 9%.
Answer:
d= 12.2 C= 38.3
Step-by-step explanation:
The radius of a circle is half of the diameter so multiply 6.1 by 2
6.1 x 2 = 12.2 ft
To find the circumference:
C = 2πr
C = 2(3.14)(6.1)
C= 2(19.154)
C= 38.3
Each Yard costed 6 dollars
6 x 2 yards = 12 dollars
half a yard = 3 dollars
12+3=15
Answer:4
Step-by-step explanation:
Answer:
D.6
Step-by-step explanation:
