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dimaraw [331]
3 years ago
6

A modified roulette wheel has 44 slots.One slot is 0, another is 00, the others are numbered 1 trough 42 respectively.You are pl

acing a bet that an outcome is an odd number (neither 0 or 00 are even or odd).
a. What is your probability of winning?
b. What are the actual odds against winning?
c. The payoff odds are 1:1. How much profit do you make if you bet $14 and win?
d. How much profit should you make on a $14 bet if the payoff odds are the same as the actual odds against winning?
Mathematics
1 answer:
Gwar [14]3 years ago
7 0

Answer:

Step-by-step explanation:

There are 44 slots with numbers 0 , 00 , 1 ,2 ...42

Bet is placed for an odd number

Total odd numbers are = 1,3,...41 = 21

Total numbers = 44

a) Probability of winning=n(odd numbers)/total numbers

= \frac{21}{44} \\=0.4773

b) Actual odds against winning = \frac{0.4773}{1-0.4773} \\=0.9131

c) Pay off odds are 1:1.

So profit if we bet 14 dollars = 14 (0.9131) = 12.7833

d) If pay off is the same as 0.4773:0.5227=0.9131:1

Profit would be =0.9131*0.9131=\\0.8338

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David is an enthusiastic cyclist. He uses an app on his phone to track each of his cycling sessions below is shown some informat
andrew11 [14]

The required diagram is attached in the picture below :

Answer:

15.05 miles

2 :09:12

5 hours 19 minutes 18 seconds

Step-by-step explanation:

Given :

28/4/18:

Time : 1 :03 : 25

Fastest mile = 02 : 25

Distance = 15.05 miles

03/5/18:

Time : 2:06: 41

Fastest mile = 02 : 53

Distance = 28.70 miles

08/5/18:

Time : 2 :09:12

Fastest mile = 02 : 45

Distance = 26.39 miles2

1.) shortest distance cycled :

From the data:

15.05 < 26.39 < 28.70

Shortest distance cycled = 15.05 miles

The longest the cycled:

1 :03 : 25 < 2:06: 41 < 2 :09:12

Longest = 2 :09:12

Total cycling time :

1 :03 : 25 + 2:06: 41 + 2 :09:12

(1 + 2 + 2)= 5 hrs

(03 + 06+ 09) = 18 minutes

(25 + 41 + 12) = 78 seconds = 1 minute 18 seconds

18 minutes + 1 minute = 19 minutes

Total = 5 hours 19 minutes 18 seconds

7 0
3 years ago
Zola has 575 beads.She needs 32 beads to make a necklace.How many necklaces
Alecsey [184]

Answer:

17

Step-by-step explanation:

575/32=17.96875 or 17

7 0
3 years ago
Read 2 more answers
The U.S. Department of Transportation provides the number of miles that residents of the75 largest metropolitan areas travel per
Leya [2.2K]

Answer:

a. The point estimate of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residentstravel per day is 88

b. The 95% confidence interval for the difference between the two population means is (0.58171,7.21829)

Step-by-step explanation:

a. According to the given data we have the following:

Buffalo residents mean=22.5

Standard deviation=8.4

n=50

Boston residents mean=18.6

Standard deviation=7.4

n=40

Hence, the point estimate is the difference of the means=22.5-18.6=3.9

The standard error=√((s1∧2/n1)+((s2∧2/n2))=√((8.4∧2/50)+(7.4∧2/40))=1.67

Therefore, the difference of miles=n1+n2-2=50+40-2=88

The point estimate of the difference between the mean number of miles that Buffalo residents travel per day and the mean number of miles that Boston residentstravel per day is 88.

b. The critical value of t at 95% confidence level and DoF=88 is 1.987

The interval:(x1-x2)+ (critical value* std error)

=3.9-(1.987*1.67),3.9+(1.987*1.67)

Difference between mean=(0.58171,7.21829)

The 95% confidence interval for the difference between the two population means is (0.58171,7.21829)

8 0
3 years ago
A researcher decides to split scores on an exam into quartiles. She determines that a score of 64 is at the 25th percentile, a s
allochka39001 [22]

Answer:

Answer : A

Step-by-step explanation:

The given data is 25 th percentile is 64, 50th percentile is 74 and 75 th percentile is 80.

percentage : 25    50   75

  score        : 64    74    80

Median:- The median is obtained by first arranging the data in ascending or descending order and applying the following rule.

If the number of observations is odd, then the median is  observation

(\frac{n+1}{2}) ^{th} term

If the number of observations is even, then the median is  observation and  observations.

(\frac{n}{2}+1) ^{th}

given n=3, middle term is '74'

 In this given data the median is (M) = 74

Interquartile range IQR = median of upper half-median of lower half

                                       = 80-64

                                       = 16

                            IQR = 16

8 0
3 years ago
Unpopular opinion
Harlamova29_29 [7]

Answer:

no i think you are just unlucky :)

Step-by-step explanation:

8 0
3 years ago
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