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MakcuM [25]
4 years ago
9

A number is picked randomly in the range [2,8]. If past selection indicates that the numbers picked are less than 5, what is the

probability that a number picked will be (a) less than 4 (b) greater than 4. What is the probability that the number picked is 4.5
Mathematics
1 answer:
yawa3891 [41]4 years ago
7 0

Answer:

a) P = 2/7

b) P = 4/7

c) P = 1/7

Step-by-step explanation:

In the range of [2,8], we have the following integers which are: 2, 3, 4, 5, 6, 7, 8. So this is a total of 7 integers.

a) We look for the probability that the numbers are less than 4, so we conclude that there are possible numbers 2 and 3 out of possible 7, so the required probability is equal to P = 2/7.

b) We look for the probability that the numbers are greater than 4, so we conclude that there are possible numbers 5, 6, 7, 8 out of possible 7, so the required probability is equal to P = 4/7.

c) Based on the previous two examples, we conclude that the required probability is P = 2/7· 1/2=1/7.

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A line has a y-intercept of 19 and a slope of 9/4. Find the equation of the line.
Taya2010 [7]

Answer:

y=9/4x+19

Step-by-step explanation:

3 0
3 years ago
Suppose you are offered a job that lasts one month, and you are to be very well paid. Which of the following methods of payment
mihalych1998 [28]

Question is Incomplete, Complete question is given below.

Suppose you are offered a job that lasts one month. Which of the following methods of payment is more profitable for you?

I. One million dollars at the end of the month.

II. One cent on the first day of the month, two cents on the second day, four cents on the  third day, and, in general,  cents on the nth day.

Answer:

Option II is more profitable.

Step-by-step explanation:

Solution:

By Option I:

Amount we will get every month = $1,000,000

Now By Option II.

Given:

Amount we will get every month = 2^{n-1}

Now we will consider the month which has least number of days in a month which is February which has 28 days.

So we can say that.

Amount we will get every month = 2^{27-1}=2^{26}= 1, 34,217,728\ cents = \$1,342,177.28

$1,342,177.28 > $1,000,000

Hence Option II is more profitable.

7 0
3 years ago
A car is driving at 70 kilometers per hour. How far, in meters, does it travel in 5 seconds?
notka56 [123]

Answer:

97.2 m

Step-by-step explanation:

\frac{70 km}{1 h} = \frac{70000 m}{3600 s} = 19.4 m/s

Distance = speed x time = 19.4 m/s x 5 s = 97.2 m

8 0
4 years ago
Help please which expression could NOT be used to find the quotiend of 1,377 and 9
topjm [15]

Answer:

C

Step-by-step explanation:


7 0
3 years ago
11 –2<br><br> · <br> 3 –4<br><br> · <br> 6 2<br><br> =
Sav [38]

Answer: negative 243

11 - 2 x 3 - 4 x 62 =

11 - 6 - 4 x 62=

11 - 6 - 248=

5 - 248=

-243

4 0
3 years ago
Read 2 more answers
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