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kogti [31]
3 years ago
13

According to an article in Marketing News, fewer checks are being written at the grocery store checkout than in the past. To det

ermine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.
Year
Check Written Year 1 Year 2 Year 3
Yes 225 175 125
No 275 325 375

Referring to the above table, what is the expected number of shoppers who pay by check in year 1, if there is no difference in the proportion of shoppers who pay by check among the three years?

Select one:

a. 150
b. 187.5
c. 175
d. 225
Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

ooga booga

Step-by-step explanation:

my feet smell like tooga

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MrMuchimi

Answer:

  29 m³

Step-by-step explanation:

The applicable formula is ...

  V = (1/3)Bh

Assuming the height is 10 m, the volume is ...

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4 years ago
30-60-90 triangle..find the value of x?
harkovskaia [24]

Answer:

A. y = 9√3

Step-by-step explanation:

The relationship of the sides of the triangles are as follows:

First leg = x

Second leg = x√3

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Since we know the first leg is 9, multiply that by √3.

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3 years ago
The ratio of money in Terry's bank account to Faye's bank account was 3:5.
inn [45]

Answer:

<em>Terry had £780 initially and Faye had £1300</em>

Step-by-step explanation:

<u>System of Equations</u>

We'll call the following variables:

x = Terry's balance in his bank account

y = Faye's balance in her bank account

The initial relation between them is:

\frac{x}{y}=\frac{3}{5}

Cross-multiplying:

5x = 3y        [1]

If Terry put £220 in his account he had x+220 and if Faye withdrew £300 from her account, she had y-300. Both quantities are equal, thus

x + 220 = y - 300

Subtracting 220:

x = y - 520         [2]

Substituting in [1]

5(y - 520) = 3y

Multiplying:

5y - 2600 = 3y

Adding 2600 and subtracting 3y:

2y = 2600

Dividing by 2:

y = 1300

From [2]:

x = 1300 - 520

x = 780

Terry had £780 initially and Faye had £1300

7 0
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The correct answer is A based on the line of best fit

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3 years ago
Dave made fruit punch for his party but accidentally tripped and spilled 5/12 of the punch. How much of the punch was left?
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He still has 7/12. Because 12/12 -5/12=7/12.
4 0
3 years ago
Read 2 more answers
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