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astra-53 [7]
4 years ago
10

Analysis of visitor behavior has shown that fans are equally likely to leave the stadium through any of the 5 marked stadium exi

ts. What is the probability of a visitor exiting through either exit A or exit B?
0.20

0.40

0.02

0.04
Mathematics
1 answer:
djverab [1.8K]4 years ago
7 0

Answer:

0.40

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

Exit A or exit B, so 2 desired outcomes.

This means that D = 2

Total outcomes:

Any of the 5 exits, so T = 5

Probability:

p = \frac{2}{5} = 0.4

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aivan3 [116]

Answer:

m= 6.83, m= 41/6

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If you sum the numbers from 1 to 36, the sum is ?
Snowcat [4.5K]
I got 665 but I was typing pretty fast so sorry if it’s not right. That is if you mean add every number together like 1+2+3+4.....
7 0
4 years ago
If The 3rd term of an A.S is and 5th term is . What is an A.P?​
Bad White [126]

Question:

If The 3rd term of an A.S  23 is and 5th term is 15 .P What is an A.?​

Answer:

A.P is   31, 27, 23 ,19, 15, 11, 7, 3

Step-by-step explanation:

Given:

3rd term =  23

5th term =  15

To Find:

The arithmetic Progression = ?

Solution:

Let

a_1 be the first term and d be difference

Then the arithmetic progression will be ,

a_1 , (a_1+d),(a_1 +2d),......(a_1+(n-1)d)

From the question ,

third term = 13

(a_1 +2d) = 23-------------(1)

Similarly

(a_1 +4d) = 15-----------------(2)

Subtracting (1) from  (2) we get

-2d =8

d = \frac{8}{2}

d = -4

Substituting d = 4 in equation 1, we get

(a_1 +2(-4)) = 23

(a_1 -8) = 23

a_1 = 23 +8

a_1 = 31

a_1 , (a_1+d),(a_1 +2d),......(a_1+(n-1)d)

=  31 ,(31 +(-4)) ,(31 +2(-4)), (31+3(-4)).........

=>  31, 27, 23 , 19, 15, 11,7,3

3 0
4 years ago
12.5 is 25% of what number
Ksenya-84 [330]
12.5 is 25% of x
percent means parts out of 100
25%=25/100=1/4
12.5=1/4 of a number
mulitply both sides by 4
50=number

the number is 50
7 0
3 years ago
Read 2 more answers
Please help on number 9,
sergejj [24]

Answer:

50

Step-by-step explanation:

9.  There are  4 odd numbers and 4 even numbers

P(odd number) = odd numbers/ total

                         = 4/ (4+4)

                         =4/8

                         = 1/2

If we spin 100 times, we multiply the number of times we spin * the probability

100 * 1/2 = 50

3 0
3 years ago
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