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3 years ago

HELP IM ABT TO FAIL :)

Mathematics

1 answer:

Delicious77 [7]3 years ago

7 0

Answer:

15/36

Step-by-step explanation:

One hack that I used is I looked at all of the options in the first row and added the number one less 6 times

I basically did

5+(5-1)+(5-2)+(5-3)+(5-4)

5+4+3+2+1

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60% of what number is equal to 30?<br> A) 0.5 B) 2 C) 18 D) 50

Arada [10]

Answer:

D. 50

Step-by-step explanation:

50/1 (60/100) =

3000/100 =

30/1 =

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3 years ago

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What did Tarzan like to play?

Mazyrski [523]

Answer:

Step-by-step explanation:

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3 years ago

Please help meeeeeeeee

kiruha [24]

Answer:

24 units²

Step-by-step explanation:

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2 years ago

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In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who foll

maxonik [38]

Answer: 0.5

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_x\ p^x(q)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total trials and p is the probability of getting success in each trial.

Given : The probability that the adults follow more than one game = 0.30

Then , q= 1-p = 1-0.30=0.70

The number of adults surveyed : n= 15

Let X be represents the adults who follow more than one sport.

Then , the probability that fewer than 4 of them will say that football is their favorite sport,

$P(X\leq4)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)\\\\=^{15}C_{0}\ (0.30)^0(0.70)^{15}+^{15}C_{1}\ (0.30)^1(0.70)^{14}+^{15}C_{2}\ (0.30)^2(0.70)^{13}+^{15}C_{3}\ (0.30)^3(0.70)^{12}+^{15}C_{4}\ (0.30)^4(0.70)^{11}\\\\=(0.30)^0(0.70)^{15}+15(0.30)^1(0.70)^{14}+105(0.30)^2(0.70)^{13}+455(0.30)^3(0.70)^{12}+1365(0.30)^4(0.70)^{11}\\\\=0.515491059227\approx0.5$

Hence, the probability rounded to the nearest tenth that fewer than 4 of them will say that football is their favorite sport =0.5

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3 years ago

Erggkhbqea <br><br>cbse class 7 maths chapter 8 exercise 8.3 solutions in

madam [21]

Answer:

am I supposed to join your meet with that C0DE

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2 years ago