Answer:
A. -1
Step-by-step explanation:
We have been given that a shipment of beach balls with a mean diameter of 28 cm and a standard deviation of 1.3 cm is normally distributed.
Since z-score represents that a raw score is how many standard deviation above or below mean.
To solve our given problem we will use z-score formula.
, where,
,
.
Upon substituting our given values in z-score formula we will get,
Therefore, a beach ball with a diameter of 26.7 cm differs -1 standard deviation from the mean and option A is the correct choice.
Answer: 1
Step-by-step explanation: trust me, I took the test
Answer: 38
6 x 8 = 48
48 - 10 = 38
x = 26.45
Cos theta = adjacent side / hypotenuse
cos 50 = 17 /x
Switch the x and the cos 50
x = 17 / cos 50
x =26.44730506
Rounding to 2 decimal places
upper left