All categories

4 years ago

PLEASE HELP URGENT!!!

Mathematics

1 answer:

spin [16.1K]4 years ago

5 0

Answer:

0.70

Step-by-step explanation:

According to the given question,

P(A) = 0.60

P(B) = 0.25

P(A and B) = 0.15

And we are asked to find P(A or B) ,

We know,

P(A or B) = P(A) + P(B)-P(A and B)

Putting the values we get,

P(A or B) = 0.60 + 0.25 - 0.15

P(A or B) = 0.70

Thus option B is correct one.

You might be interested in

Two fathers and two sons enter a movie theater and pat ten dollars each. The ticket seller takes $30. What happened to the rest

atroni [7]

Answer:

they wont have any left

Step-by-step explanation:

think about grandfather, father, and son.

4 0

3 years ago

The data to represent average test scores for a class of 16 students includes an outlier value of 78. If the mean, including the

monitta

Answer:

Given that The data to represent average test scores for a class of 16 students includes an outlier value of 78.

We can find sum of all 16 test scores = 84(16) = 1344

Outlier found = 78

If outlier is removed new sum = 1344-78 = 1266

Number of entries without outlier = 15

New average = 1266/12 =84.4

We find that average of new data increases.

Also whenever we remove outlier std deviation also would be reduced.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Milan deposited 4000 into an account with 5.4% interest, compounded monthly. Assuming that no withdrawals are made, how much wil

GREYUIT [131]

Answer:

<em>Milan will have $4701.73 in his account</em>

Step-by-step explanation:

<u>Final Value in Compound Interest</u>

The compound interest computes each interest earned in a period including the interest earned in the previous periods.

If an initial value or principal P is deposited into an account with an interest rate i, during n periods, the final value FV will be

$FV=P(1+i)^n$

If the interest is compounded monthly we must convert to the monthly equivalent:

$\displaystyle i=\frac{5.4}{12\times 100}=0.0045$

The period of investment must be expressed in months, thus

$n=3\cdot 12=36$

Now we find the final value

FV=4000(1+0.0045)^36=4701.73

Milan will have $4701.73 in his account

5 0

3 years ago

X+Y=4 ? I think math

ryzh [129]

The answer for both is 2

4 0

3 years ago

How do you know that the Pythagorean Theorem is true?

kirza4 [7]

The fact that the angles in a triangle add up to 180 indicates that it is actually a square). There are also four right triangles, each with a base and a height. The Pythagorean Theorem is reached when a2 + b2 = c2.

5 0

2 years ago