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sweet-ann [11.9K]
3 years ago
15

PLEASEEE help with 3-4 and a-b :)

Mathematics
1 answer:
attashe74 [19]3 years ago
3 0
The awnser would be-(4a+b-3) I hope this helps you
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The box plot below represents some data set. What is the interquartile range (IQR) of
vesna_86 [32]

Answer:

I think the IQR is 100

Step-by-step explanation:

You would have to find the first and third quartiles first. After that you would subtract the third quartile by the first to get the IQR

6 0
2 years ago
At a summer camp there are 40 boys out of 70 campers what is the ratio written as a fraction in simplest form
drek231 [11]

Answer:

4/7

Step-by-step explanation:

40/70 = 4/7

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3 years ago
Explain the effect of c on the graph of y=f(x) for the function y=f(x)+c ?
omeli [17]

Answer:

Shifts it up c units.

Step-by-step explanation:

The '+ c'  will move the whole graph upwards c units.

4 0
2 years ago
Read 2 more answers
For a binomial process, the probability of success is 40 percent and the number of trials is 5. Find the standard deviation.
Yakvenalex [24]

Answer:

Sd(X) =\sqrt{1.2}=1.095

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=5, p=0.4)

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

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

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

The mean for the binomial distribution is given by:

E(X) =np=5*0.4=2

And the variance is given by:

Var(X) = np(1-p) =5*0.4*(1-0.4)=1.2

And the deviation is just the square root of the variance so we got:

Sd(X) =\sqrt{1.2}=1.095

7 0
3 years ago
The single equivalent discount rate of 9/5/4 is .17008. True or False?
Sedbober [7]
I think its true but i may be wrong

5 0
3 years ago
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