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nalin [4]
3 years ago
7

A store manager is looking at past jewelry sales to determine what sizes of rings to keep in stock. The list shows the ring size

s purchased by the last ten jewelry customers.
9, 7, 6.5, 7.5, 7, 8, 5, 6, 7.5, 8
What is the variance of the data set? Round to the nearest hundredths.

0.40
0.72
1.15
2.14
Mathematics
2 answers:
kicyunya [14]3 years ago
7 0

Answer:

1.15 is the answer

Step-by-step explanation:

ss7ja [257]3 years ago
5 0

Answer: 1.15

Step-by-step explanation:

You might be interested in
in an examination ,80%examines passed in English ,70%in mathematics and 60% in both subject if 45 examines failed in both find t
stiv31 [10]

Answer:

135 and 135

Step-by-step explanation:

The computation is shown below:

The number of examiners who passed in only one subject is as follows

=  n(E) - n(E ∩M) + n(M) - n(E ∩M)

= (80 - 60 + 70 - 60)%

= 30%

Now the number of students who passed in minimum one subject is

n(E∪M) = n(E) + n(M) -  n(E ∩M)

= 80 - + 70 - 60

= 90%

Now the number of students who failed in both subjects is

= 100 - 90%

= 10% of total students

= 45

So total number of students appeared for this 450

So, those who passed only one subject is

= 450 × 30%

= 135

Now the Number of students who failed in mathematics is

= 100% - Passed in Mathematics

= 100% - 70%

= 30% of 450

= 135

4 0
2 years ago
A giant tortoise can walk about 1/10 meters per second on land. A cooter turtle can walk about 1/2 meter per second on land. How
timurjin [86]
(1/10) / 1 = 3 / x.....1/10 m to 1 second = 3 m to x seconds
cross multiply
(1/10)(x) = (3)(1)
1/10x = 3
x = 3 / (1/10)
x = 3 * 10/1
x = 30 seconds <====
7 0
3 years ago
Given that €1=£0.72 how much is €410 in £ what is the £ to € exchange rate
Virty [35]

Answer:

As per the given statement:

€1 = £0.72

Find how much is €410 in £.

then;

€410 = 0.72 \times 410 = £295.2

Hence, £295.2 much is €410.

to find, the exchange rate of £ to €:

€1 = £0.72

Divide both sides by 0.72 we get;

£1 = €1.389

4 0
3 years ago
In 1970, the average length of a major league baseball game was 150 minutes compared to 180 minutes in 2018. Calculate the absol
Pavlova-9 [17]

Answer:

  • 30 min
  • 20%

Step-by-step explanation:

The absolute change in game length is ...

  (180 min) -(150 min) = 30 min . . . . change in game length

__

The relative change is expressed as a fraction of the original game length:

  (30 min)/(150 min) × 100% = 20% . . . . relative change in game length

6 0
3 years ago
What is 33 %of what number is 1.45
Anna007 [38]
To find 33% of 1.45 we have to tranform 33% into decimal of traction
33% is 0.33 or \frac{33}{100} and multiply if by 1.45
so
0.33*1.45=0.4785
or
1.45*\frac{33}{100}= \frac{957}{2000}
5 0
3 years ago
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