Answer:
1/12 ≈ 8.33%
Step-by-step explanation:
If there's only 3 girls, then there's no way that a group of 5 can be all girls. I assume you mean that there are 7 girls and 3 boys?
The number of ways to choose 5 students from 10 is ₁₀C₅. This is the total number of combinations possible.
The number of ways to choose 5 students from 7 girls is ₇C₅.
So the probability is:
P = ₇C₅ / ₁₀C₅
P = 21 / 252
P = 1 / 12
P ≈ 8.33%
12.
To find the mean of a group of data, you add up all of the numbers and divide the total by the amount of numbers there are. In this case, you have 15,11,10,11,14,10,15,10,and 12.
All of those numbers added together is 108.
108 divided by 9 numbers, or weeks, is 12.
The average, or mean, is 12.
x ≥ -6
-3x-7 ≤ 11
-3x-7+7 ≤ 11+7
-3x ≤ 18
(-3x)(1) ≤ 18(-1)
3x ≤ -183x/3 ≤ -18/3
The mode for the colors that Santino wore recently is Blue.
The mode of a data set is the term or observation that presents most of the time.
The frequency table of different colored polo shirts worn by Santino is:
Color Frequency
Yellow 2
Blue 3
Green 1
Pink 1
Brown 1
Orange 1
Chartreuse 1
Black 1
Puce 1
The color Blue has the highest frequency, i.e. 3.
So, the mode for the colors that Santino wore recently is Blue.
This composite figure consists of a right triangle and semicircle
The area of a triangle is: 1/2(bh)
The area of a semicircle is 1/2(pi)(r²)
Plug in the values:
1/2( 12)(8)
=48
1/2(3.14)(4²)
=25.12
25.12+48=73.12
Hope this helped :)
