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vichka [17]
3 years ago
11

The probability that a train leaves on time is .07. The probability that the train arrives on time and leaves on time is 0.56. W

hat is the probability that the train arrives on time, given that it leaves on time?
Mathematics
2 answers:
insens350 [35]3 years ago
6 0
Refer to the other answer.
Makovka662 [10]3 years ago
3 0
Event A: leave on time  P(A) = 0.7
Event B: arrive on time  P(B) = ?
Both: P(A)*P(B) = 0.56  -> P(B) = 0.8

I'm assuming you are typing the number wrong for event A
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I really need help, answer as many as you can please
amid [387]
5^2 -7•4+(36-2^(5) so do (36-2^5 first put that in the calculator which gets u 32.Then bring down 5^2-7•4+32 then do 5^2 and 7×4 which 25 -28+32 add them together u get 60 so 25 -60 is 35
6 0
3 years ago
Ten-ninths of the sum of 3x, 12y and -6z
jenyasd209 [6]
9/10(3x+12y+-6z) is the expression, simplified it's:
2.7x+10.8y-5.4z 

Hope this helped!
8 0
3 years ago
If there are 20 values in a data set in order from smallest to largest, what is
Natasha_Volkova [10]

Answer:

C The mean of the 10th and 11th values

Step-by-step explanation:

Strike the lowest and largest number until you get 1 or 2:

1, 2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19, 20

2, 3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18, 19

3,4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17, 18

4 5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16, 17

5,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15, 16,

,6 ,7 8, 9, 10, 11, 12, 13 ,14, 15

,7 8, 9, 10, 11, 12, 13 ,14,

8, 9, 10, 11, 12, 13

9, 10, 11, 12

10, 11,

Finding the Mean:

10+11

21

21/2

Mean:

10.5

8 0
3 years ago
10. To make pancakes, Sheila needs 2 cups of flour. If Sheila only has
babymother [125]

Answer:

she needs 1 more cup of flower to make pqncakes

4 0
3 years ago
A $3,500.00 principal earns 3% annual interest, compounded semiannually (twice per year). After 20 years, what is the balance in
AnnZ [28]
Principal amount= $3,500.00
Annul interest rate= 3%
Numbers of years= n =20,
compounded semiannually

Solution:
Use the semiannual compounding period to express the effective semiannual rate which is 3%/2 = 1.5% per 6 month  period.
Now there are n=2(no. of years) semiannual periods for given cash flow
n=2*20
n=40 semiannual periods  
Now,
F=P( F/P,1.5%,40)
F=$3500(1.8140)       , (1.8140 is the value get from table at 1.5% interest for n=40)
F=6,349.00 is the amount in bank after 20 years, compounded semiannually. 

You can also do this problem by another method which is first find the compound interest by using the formula I=((1+i/n)^n)-1.........3 i=3%=0.03 n=20 So, by putting values in the above formula 3, you get I=(1+0.03/20)^20-1 I=1.031-1 I=0.030403 I=3.043% F=P(F/P,i%,n) F=$3500(F/P,3.043,20) When you use this interest( I )then you will need interpolation if the I value is not in the economics table F=6,349.00 The answer will remain same as get by above method.
6 0
3 years ago
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