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otez555 [7]
3 years ago
5

To explain:The reason for the statement to be incorrect.A person participates in a weekly office pool in which he has one chance

in ten of winning the prize. If he participates for five weeks in succession, the probability of winning at least one prize is 5/10.
Mathematics
1 answer:
stepan [7]3 years ago
3 0

Answer:

The correct answer is - given approach is incorrect.

Step-by-step explanation:

P = probability of winning = 1/10

q = probability of not winning = 1- (1/10) = 9/10

x = no. of winning

then, p (x ≥ 1) = 1 - p (x < 1)

= 1 - p (x=0)

= 1 - ⁵C₀ (1/10)^⁰ (9/10)^(5-0)

= 1 - (1) (1) (9/10)^5

=  1 - (9/10)^5

You might be interested in
What is the equation, in point slope form, of the line
melamori03 [73]

Answer:

y=3/2x+11/2

Step-by-step explanation:

Hello! Sorry  I just saw this

Anyways, let's continue

first, we need to find the equation of the line with the one that is (-2,-4) and (2,2)

first, we need to find the slope

the equation for slope is y2-y1/x2-x1

so let's label the points

x1=-2

y1=-4

x2=2

y2=2

now plug it in

2-(-4)/2-(-2)=6/4=3/2

now, let's turn it into a line

the point-slope form is y-y1=m(x-x1) (m=slope)

now, plug it in

y-(-4)=3/2(x-(-2))

simplify to

y+4=3/2(x+2)

turn into y=mx+b format

y+4=3/2x+3

subtract 4 on both sides

y=3/2x-1

Now for the line that is parallel.

Parallel lines have the same slopes, so you automatically know that the new line will be y=3/2x+b

To make sure (-3,1) is a solution to the point, put 1 as y and -3 as x

1=3/2(-3)+b

1=-9/2+b

add 9/2 on both sides

b=11/2 or 5.5

now, put it into the equation

y=3/2x+11/2

Hope this helps!

5 0
3 years ago
Each day that a library book is kept past its due date, a $0.30 fee is charged at midnight. Which ordered pair is a viable solut
castortr0y [4]
$0.30x=y should be the answer because there is a 30cent fee for every day and x represents how many days it's kept therefore you would add 30 cents for every day it's kept so it's valid to say $0.30x=y becaue the 30 cents times the total of days it's kept = y (the toatl)
5 0
3 years ago
Read 2 more answers
Please answer this question
Ann [662]
9.9=9×9=81 and you have to multiply
6 0
3 years ago
Clara is building a triangular garden. She wants the length of the longest side to be three more than twice as long as the lengt
nlexa [21]

The simplified expression would be 3s + 15.

In order to find this we need to write an equation for the longest side. Since it's 3 more than twice as much as the smallest side (s), we can express it as 2s + 3. Now we simply add all 3 together and simplify.

2s + 3 + 12 + s -----> simplify

3s + 15

8 0
3 years ago
Lisa drinks 3 1/2 pints of milk a day. How much is this in cups?
olga nikolaevna [1]
7 cups; there are two cups per pint, so three and a half pints equals seven cups of milk.
5 0
3 years ago
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