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vesna_86 [32]
3 years ago
14

Please help me I really need help

Mathematics
1 answer:
siniylev [52]3 years ago
4 0

Answer:

b 33 i took test i know

Step-by-step explanation:

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4. Assume that the chances of a basketball player hitting a 3-pointer shot is 0.4 and the probability of hitting a free-throw is
vovikov84 [41]

Answer:

0.0334 = 3.34% probability that the player will make exactly 3 3-pointers and 5-free throws.

Step-by-step explanation:

For each 3-pointer shot, there are only two possible outcomes. Either the player makes it, or the player does not. The same is valid for free throws. This means that both the number of 3-pointers and free throws made are given by binomial distributions.

Since 3-pointers and free throws are independent, first we find the probability of making exactly 3 3-pointers out of 10, then the probability of making exactly 5 free throws out of 10, and then the probability that the player will make exactly 3 3-pointers and 5-free throws is the multiplication of these probabilities.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Probability of making 3 3-pointers out of 10:

The chances of a basketball player hitting a 3-pointer shot is 0.4, which means that p = 0.4. So this is P(X = 3) when n = 10.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{10,3}.(0.4)^{3}.(0.6)^{7} = 0.21499

Probability of making 5 free throws out of 10:

The probability of hitting a free-throw is 0.65, which means that p = 0.65. The probability is P(X = 5) when n = 10.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 3) = C_{10,5}.(0.65)^{5}.(0.35)^{5} = 0.15357

Calculate the probability that the player will make exactly 3 3-pointers and 5-free throws.

0.21499*0.15537 = 0.0334

0.0334 = 3.34% probability that the player will make exactly 3 3-pointers and 5-free throws.

5 0
3 years ago
432,2=26<br>275,3=66<br>342,5=41<br>123,4=20<br>then <br>543,2=?​
Readme [11.4K]

Answer:

I think 543,2=24.

hope it helps

5 0
3 years ago
PLEASE HELP<br><br> Log,3 7=x is equivalent to which of the following (choose all correct answers)
ELEN [110]

Answer:

should be 3^X = 7 and X = log7/log3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
I need help my question is -2 less than or equal to 3x-2 &lt;10
Kisachek [45]

A n s w e r:

0 ≤ x < 4

4 0
3 years ago
pls help me with this question. just one! thank you so much to whoever decides to it will make my day a lot ❤️❤️
Yuliya22 [10]

Answer:

2 385/3913

i think..

Step-by-step explanation:

6 0
3 years ago
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