Answer:
a. possible sample size is 10
b. mean is 3
c standard deviation is 0.9
Step-by-step explanation:
Mean of any given set of numbers is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.
Standard deviation is a measure of the amount of variation or dispersion of a set of values.
Go to attachment for detailed analysis.
Answer:
4, 4, 4, 4, and 4
Step-by-step explanation:
mode = 4
median = 4
so we know two of the five numbers are 4;


multiply both sides by 5

therefore; the numbers are all 4
Answer:

Step-by-step explanation:
We are asked to find the product of
and
.
Upon writing our expression as a product we will get,

Let us convert our given mixed fractions to improper fractions.
Upon cancelling out 3 from our given expression we will get,
Upon dividing -7 by 2 we will get,

Therefore, our expression simplifies to -3.5.
0.8 inches
the volume (V) of a sphere is calculated using the formula
V =
πr³
change the subject and express in terms of r
multiply both sides by 3
3V = 4πr³ ( divide both sides by 4π )
r³ = 3V / 4π ( take the cube root of both sides )
r = ∛( 3V /4π )
sphere A with V= 40
r = ∛ (120 / 12.56 ) = 2.122
sphere B with V = 10
r = ∛(30 / 12.56 ) = 1.337
sphere A - sphere B = 2.122 - 1.337 = 0.8 inches ( to nearest tenth )