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Akimi4 [234]
3 years ago
14

2. Jimmy is rolling a 1-6 number cube. Which statement is true? A Jimmy is equally likely to roll a 5 as an even number. B. Jimm

y is equally likely to roll a 1 as an odd number. C Jimmy is more likely to roll a 6 than a 1. D Jimmy is equally likely to roll an even number as an odd number.​
Mathematics
2 answers:
zaharov [31]3 years ago
6 0

Answer:

It's D because I hope it helps pls like

VladimirAG [237]3 years ago
3 0

Answer:

D Jimmy is equally likely to roll an even number as an odd number

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There are 40 people at Drake's sweet sixteen party. Drake's only rule is that everyone in the party must meet and shake each oth
nikdorinn [45]
1) This is a combination, so use ⁴⁰C₂.
     ⁴⁰C₂ = 780
     There are 780 handshakes in total.

2) I got my solution by using the combinations formula. Or another way you              could do this is to add up... 39 + 38 + 37 + 36 + 35 + 34 + 33 + 32 + 31... +1.          You will end up with 780 (I did this to double check my work).

3) The quickest way to figure this out if Drake invited 1,000 people is to use the       natural numbers formula = n(n+ 1)/2.
     Plug the numbers in: 999(1000)/2 = 499,500 
     If Drake invited 1,000 people, there would be 499,500 handshakes.

7 0
3 years ago
Read 2 more answers
he XO Group Inc. conducted a survey of brides and grooms married in the United States and found that the average cost of a weddi
ahrayia [7]

Answer:

A. P(X<20,000) = 0.0392

B. P(20,000 < x < 30,000) = 0.488

C. Amount = $39,070

Step-by-step explanation:

From XO group website

Cost of a wedding = $29,858

Mean, μ = $29,858

Standard Deviation, σ =$5,600

a. Calculating the probability that a wedding costs less than $20,000

P(X<20,000)?

First, the z value needs to be calculated.

z = (x - μ)/σ

x = 20,000

z = (20,000 - 29,858)/5600

z = -1.76

So, P(X<20,000) = P(Z<-1.76)

From the z table,

P(Z<-1.76) = 0.0392

P(X<20,000) = 0.0392

b. Calculating the probability that a wedding costs between $20,000 and $30,000

P(20,000 < x < 30,000)

First, the z value needs to be calculated.

z = (x - μ)/σ

When x = 20,000

z = (20,000 - 29,858)/5600

z = -1.76

When x = 30,000

z = (30,000 - 29,858)/5600

z = 0.02

P(20,000 < x < 30,000) = P(-1.76 < z <0.02) --- using the z table

P(-1.76 < z <0.02) = 0.508 - 0.0392

P(-1.76 < z <0.02) = 0.4688

P(20,000 < x < 30,000) = 0.488

c. Using the following formula, we'll get the amount it'll a wedding to be among the 5% most expensive

z = (x - μ)/σ where x = amount

Make x the subject of formula

x = σz + μ

Fist we need to get the z value of 5%

z0.05 = 1.645

x = σz + μ becomes

x = 5600 * 1.645 + 29,858

x = $39,070

Amount = $39,070

5 0
3 years ago
I need help with this!!
dolphi86 [110]

Answer:

its 50

Step-by-step explanation:

6 0
3 years ago
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4. Using the graph at right, determine how long it<br> takes to mow an acre of grass.
kirill115 [55]

Answer:

I think 0.7

Step-by-step explanation:

3 0
2 years ago
5:2 ratio. The total number of students and teachers was 56. How many students and teachers were there
Anna [14]

Answer:

12. 5

11.

10

10

15. 7

14. 11

2

=

16

16

18. 3

+

11

17

3

4

'

co

loo

8

Step-by-step explanation:

12. 5

11.

10

10

15. 7

14. 11

5 0
2 years ago
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