Answer:
The standard deviation is 11 points
Step-by-step explanation:
To calculated the z-score of a value x, we use the following equation:

Where m is the mean, s is the standard deviation and z is the z-score.
If we solve this equation for s, we get:

So, replacing z by 2, m by 153 and x by 175, we get:

Therefore, the standard deviation is 11 points
Answer:
Decimal: n = 3.5
Fraction: n = 7/2
Step-by-step explanation:
6n = 21
n = 21/6
n = 7/2
n = 3.5
Answer:
Sex kar ha to bata do bhai yaar follw karo bata dungi
1 mile = 5280 feet
607,200 / 5280 = 115 miles per hour
Answer:
1/105
Step-by-step explanation:
Total Marbles= 2+6+7=15
2/15 * 1/14 = 2/210 = 1/105
(It becomes 1/14 since you take out own red marble)