The mean of the data set is 81.6.
The median of the data set is 80.
<h3>What is mean?</h3>
The mean is the average of a data set. Therefore,
Mean = (70 x 2 + 75 x 8 + 80 x 6 + 85 x 3 + 90 x 9) / 28 = 81.6.
Hence,
mean = 81.6
<h3>What is a median?</h3>
Median is a statistical measure that determines the middle value of a dataset listed in ascending order .
Therefore,
28 / 2 = 14
median = 80 + 80 / 2 = 160 / 2 = 80
learn more on mean and median here: brainly.com/question/28052298
#SPJ1
8^2 = 64 since 8*8 = 64
Squaring a number is the same as multiplying it by itself.
Since 8^2 = 64, this means
1/64 = 1/(8^2) = 8^(-2)
So, 1/64 = 8^(-2)
where the exponent is negative 2
10 crayons in all.
P (red) = 4/10 or 2/5
P (2nd red) = 3/9 =1/3 since there are only 9 crayons left from which to choose and only three of them are red (since we already pulled one).
2/5 x 1/3 = 2/15 = P (2 red) with no replacement.
6cm^3 =
6* 0.001dm^3=
6*10^(-3)dm^3=
6*10^(-3)*10^(-3)m^3=
6*10^(-6)m^3
or 0.000006 meters cubed
