Answer:
138
Step-by-step explanation:
Answer:
Step-by-step explanation:
the first is 1/2
second is 1/52
third is 1/4
forth is 1/8
i think thats right any way :)
Answer:
Mean = 1.9
Standard deviation = 0.6
Step-by-step explanation:
The Mean is calculate by the formula:

⇒ 
Thus Mean to the nearest tenth is 1.9
Standard Deviation is the square root of sum of square of the distance of observation from the mean.
where,
is mean of the distribution.
Putting all values in the formula, We get
Standard Deviation = 0.597 ≈ 0.6
Answer:
D. about 7 cm
Step-by-step explanation:
You can use the pythagorean theorem.
You have a triangle with sides of 5 and 5, so that means the third side is:

rounding:
