Answer:
3
Step-by-step explanation:
12*0.75=9
To find this do 9/12.
4*0.75=y
y=3
Answer:
42
Step-by-step explanation:
hey 42+9=51 so this can be the ✔️answer
Answer:
the regression line
Step-by-step explanation:
Answer: 7^8
Explanation: just add the exponent if you are multiplying two things with the same base
Step-by-step explanation:
(a)
ii.
21 - 5 = 16 play only chess.
iii.
23 - 5 = 18 play only cards
5 play both.
that is 16+18+5 = 39 that play at least one of these games.
i.
so, 45 - 39 = 6 don't play any of these games.
(b)
we have 16+18 = 34 pupils out of 45 that play exactly one game.
so the probabilty to pick one of them is as usual
desired cases / total cases = 34/45 =
= 0.755555555... ≈ 0.76
