This is like the equivalent to a jar with 4 green balls and 6 white balls, where you are picking 3. (The 4 green balls signify the friends from kindergarten.)
You want to solve the probability that the first two balls are green and the third is white.
First draw --> 4 green out of 10 balls --> 4/10 = 2/5
Second draw --> 3 green out of 9 balls --> 3/9 = 1/3
Third draw --> 6 white out of 8 balls --> 6/8 = 3/4
2/5 x 1/3 x 3/4
= 6/60
= 1/10
so the answer is 1/10 (or 10%)
I am not sure but I think it’s the first one and the fourth one.
Answer:
A higher value of standard deviation tells us that there is high variability in the length of the snake from the mean length of the snake.
Step-by-step explanation:
We are given the following information in the question:
Sample of snakes in the Clarmont Zoo's reptile house are as follows:
9, 15, 86, 13, 16, 101, 85, 10, 14, 16, 102
Formula:
where
are data points,
is the mean and n is the number of observations.


Sum of squares of differences = 1119.206611 + 753.7520659 + 1896.206612 + 867.5702477 + 699.842975 + 3427.570248 + 1810.115703 + 1053.29752 + 809.6611568 + 699.842975 + 3545.661158 = 16682.72727

Standard deviation:
- Standard deviation tells you how spread out the data is.
- It is a measure of how far each observed value is from the mean.
- A low standard deviation indicates that the values tend to be close to the mean, while a high standard deviation indicates that the values are spread out over a wider range.
A higher value of standard deviation tells us that there is high variability in the length of the snake from the mean length of the snake. The data is overspread over a wide range.
Answer:
10
Step-by-step explanation: