A) Mean - add numbers of animals, and then divide by the number of students.
numbers of animals =1*20+2*11+3*18+4*10+5*3 +6*18 = 259
number of students = 20+20+11+18+10+3+18 = 100
mean=numbers of animals /number of students = 259 / 100=2.59
b) median
You can write 20 zeroes, 20 ones, 11 twos and so on. and the remove from left and right equal amount of number, when you get in the middle,it is going to be median
<u>20 "0", 20 "1", 11 "2"</u>, <u>18 "3", 10 "4", 5 "3", 18 "6"
</u> 51 place 51 place
From the left 20+20+11=51 places
18+5+10+18=51 places
We can see that no single middle number. In the middle is going to be two numbers 2 and 3, and divide them by 2.
(2+3)/2=2.5 median
3) (127/151)*100%≈ 84.11%
The correct answer is C(30,5)
<span>
That's because you have to know factorials and apply the formulas to find out that:
30! / [5!(30 - 5!)]
30! / (5! * 25!), which means that there are </span>142506 combinations, or C(30,5)
Answer:
2040 m3
Step-by-step explanation:
you see in the pic, the shape may cut into 2 pieces, this is 1/2 of the shape.
so we take (24*10*17)/2=2040 m3.
Hope it helps you
Someone already made an answer for this
Answer:114% percent of her budget is used to entertain
Step-by-step explanation: You just add up all the money and minus it by 40%
