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3 years ago

Which sentence is punctuated correctly

Mathematics

2 answers:

timofeeve [1]3 years ago

6 0

I would say C to be honest

Degger [83]3 years ago

4 0

The answer is B. I believe

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What 12/12+12/12+8/12=

Fudgin [204]

Answer:

8/3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Suppose that the probability of a baseball player getting a hit in an at-bat is 0.3089. If the player has 25 at-bats during a we

klio [65]

Answer:

$P(X>9) = 0.3593$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=25, p=0.3089)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

For this case we want this probability:

$P(X >9)$

And we can use the complement rule like this:

$P(X>9) = 1-P(X \leq 8)= 1-[P(X=0) + P(X=1) +....+P(X=8)]$ And we can find the individual probabilities like this:

$P(X=0) =(25C0)(0.3089)^0 (1-0.3089)^{25-0} =0.0000974$

$P(X=1) =(25C1)(0.3089)^1 (1-0.3089)^{25-1} =0.0011$

$P(X=2) =(25C2)(0.3089)^2 (1-0.3089)^{25-2}=0.00584$

$P(X=3) =(25C3)(0.3089)^3 (1-0.3089)^{25-3}= 0.02$

$P(X=4) =(25C4)(0.3089)^4 (1-0.3089)^{25-4}=0.049$

$P(X=5) =(25C5)(0.3089)^5 (1-0.3089)^{25-5}=0.092$

$P(X=6)=(25C6) (0.3089)^6 (1-0.3089)^{25-6} = 0.138$

$P(X=7) =(25C7)(0.3089)^7 (1-0.3089)^{25-7}=0.167$

$P(X=8) =(25C8)(0.3089)^8 (1-0.3089)^{25-8}=0.168$

And in order to do the operations we can use the following excel code:

"=1-BINOM.DIST(8,25,0.3089,TRUE)"

And we got:

$P(X>9) = 0.3593$

4 0

3 years ago

Mrs. Canale’s class is selling frozen pizzas to earn money for a field trip. For every pizza sold, the class makes $5.35. They h

dem82 [27]

Answer:

106 more pizzas

Step-by-step explanation:

750-182.90

=567.1

567.1 / 5.35

=106

:) hope that helps

3 0

2 years ago

Read 2 more answers

Help me because I need to get a 10/10

kvv77 [185]

Option 4 I believe !

8 0

3 years ago

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While testing a new vaccine, a lab technician noticed that the number of bacteria reduced by half every minute. How long does it

Kaylis [27]

It takes three minutes for the bacteria to get to 375. to do this you put the equation 3000÷2^x, (^x means to the X power) where X is the amount of minutes, and obviously 3000 is the start amount.

4 0

3 years ago