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2 years ago

Roxy has received the following quiz scores so far this year: 75, 88, 90, 96, 98, 100 Which box plot represents this data?

Mathematics

2 answers:

Aleks [24]2 years ago

5 0

Is A i believe from what he is describing

blsea [12.9K]2 years ago

3 0

75,88,90,96,98,100

minimum = 75
Q1 = 88.....this is where the box begins
Q2 (the median) = (90 + 96) / 2 = 186/2 = 93....this is the line in the box
Q3 = 98....this is where the box ends
maximum = 100

88_93______98
75_______| | |___100
|___|_______|

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Randi and her sister made balloon animals and sold the for. $0.50 each at the school carnival. They made $48.00. If Randi made t

evablogger [386]

Answer:

Balloon made by Randi's sister $=32$

Balloon made by Randi $=64$

Step-by-step explanation:

Let Randi's sister made $x$ balloons.

Balloons made by Randi $=2\times x=2x$

total ballons $=x+2x=3x$

$1$ cast of $1$ ballon $=\$0.50$

Cost of $x$ balloons $=3x\times0.50=1.5x$

Given total money made $=\$48.0$

$1.5x=48\\\\x=\frac{48}{1.5}\\\\x=32$

ballon made by Randi's sister $=32$

Ballon made by Randi's = $2\times32=64$

5 0

2 years ago

The owner of a football team claims that the average attendance at games is over 74,900, and he is therefore justified in moving

Slav-nsk [51]

Answer:

Option c (Upper tailed) is the correct choice.

Step-by-step explanation:

Given that:

The average attendance is:

= 74,900

We will have to test:

⇒ $H_0:\mu \leq \mu_0$

or,

$H_0: \mu \leq 74,900$

Verses,

⇒ $H_1: \mu> \mu_0$

or,

$H_1: \mu >74,900$

The other given alternatives aren't connected to the given scenario. So the above is the correct one.

4 0

2 years ago

The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds. what is the probability that an indiv

Usimov [2.4K]

Less than 3 is about 10.75% and greater than 13 is about 6.18%.

To find these percents, you need to find the z-score for each value. Then, use your table to find the correct percent. Be sure to find the side above 13 when you use your chart.

For less than 3:
(3 - 7.45) / 3.6 = -1.24 = The percent below this is 0.1075

For greater than 13:
(13 - 7.45) / 3.6 = 1.54 = The percent above this is 0.0618

7 0

2 years ago

The distribution of average wait times in drive-through restaurant lines in one town was approximately normal with mean \mu = 18

Fynjy0 [20]

Answer:

193

Step-by-step explanation:

8 0

2 years ago

Miss Croft made snack bags for the picnic that contain three types of snacks: packages of crackers, packages of cookies, and can

jek_recluse [69]

Answer: $1.25

Step-by-step explanation:

Let the cost of cracker be a.

Let the cost of cookies be b.

Let the cost of candy bars be c.

From the question,

6a + 6b + 6c = $21

8a + 5b + 10c = $26

5a + 4b + 7c = $18.50

To solve this, we first pick any two pairs of equation. This will be:

6a + 6b + 6c = $21 ....... i

8a + 5b + 10c = $26 ....... ii

Multiply equation i by 8

Multiply equation ii by 6

48a + 48b + 48c = $168 ....... iii

48a + 30b + 60c = $156 ....... iv

Subtract equation iv from iii

18b - 12c = 12

We then pick another two pairs

8a + 5b + 10c = $26

5a + 4b + 7c = $18.50

Multiply equation i by 5

Multiply equation ii by 8

40a + 25b + 50c = $130

40a + 32b + 56c = $148

Subtract the equations

-7b - 6c = -18

Then, solve the new equations formed

18b - 12c = 12 ....... v

-7b - 6c = -18 ....... vi

Multiply equation i by -7

Multiply equation ii by 18

-126b + 84c = -84

-126b - 108c = -324

Subtract the equations

192c = 240

c = 240/129

c = $1.25

From equation v, put the value of c

18b - 12c = 12

18b - 12($1.25) = 12

18b - $15 = $12

18b = $27

b = $27/18

b = $1.5

Since,

6a + 6b + 6c = $21

6a + 6($1.5) + 6($1.25) = $21

6a + $9 + $7.5 = $21

6a + $16.5 = $21

6a = $21 - $16.5

6a = $4.5

a = $4.5/6

a = $0.75

One candy bar cost $1.25

6 0

2 years ago