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Vladimir [108]
3 years ago
8

Heyyy i really need help with this

Mathematics
1 answer:
Kobotan [32]3 years ago
3 0

Answer:

Step-by-step explanation:

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What can 23/40 be simplified by?
kicyunya [14]
23/40 can't be simplified as it has no common factors
8 0
4 years ago
Suppose the average commute time of your employees is unknown. The standard deviation of their commute time is estimated as 22.8
nexus9112 [7]

Answer:

96 employees

Step-by-step explanation:

Given that the standard deviation = 22.8

The width in the question = 12

We solve for the margin of error E.

E = width / 2

= 12/2 = 6

At 99%

Alpha = 1-0.99

= 0.01

Alpha/2 = 0.01/2 = 0.005

Z0.005 = 2.576

Sample size n

= ((2.576x22.8)/2)²

= 95.8

= 96

The number of employees is 96

Thank you!

6 0
3 years ago
40 points fast For the following set of test scores, identify:
myrzilka [38]

Answer:

 The measure of center would this student want his teacher to use is the

median= {\bf 75}

Mean= {\bf 5}  ,  Mode={\bf 82}  , Range={\bf40}  and   Interquartile Range= {\bf 32}

Step-by-step explanation:

Given Data set= 50,55,70,75,82,82,90

Number of elements in data set= 7

To find Mean

The ‘Mean” is the average of a set of numbers.

The "Mean" is computed by adding all of the numbers in the data together and dividing by the number  of elements contained in the data set.

Mean= \frac{50 +55 +70 + 75 + 82 + 82 + 90} {7 }

Mean= \frac{504}{7}

Mean= 5

Median

The “Median” is the middle value of a set of ordered numbers.

Therefore Median=75

Mode

The "Mode" for a set of data is the value that occurs most often.

It is not uncommon for a data set to have more than one mode. This happens when two or more  elements occur with equal frequency in the data set.

Therefore Mode=82

Range

The "Range" is the difference between the largest value and smallest value in a set of data.

Range= 90-50

Range= 40

Interquartile Range

The “Interquartile Range” is the difference between smallest value and the largest value of the middle  50% of a set of data.

The "Interquartile Range" is from Q1 to Q3:

To find the interquartile range of a set of data:

The cut the list into four equal parts

. The quartiles are the “cuts”

The interquartile range is the distance between the two middle sets of data

Interquartile Range= Q_3-Q_1

Interquartile Range= 82-50

Interquartile Range= 32

5 0
4 years ago
Sanjay sold 2/5 of his mangoes. What percentage of his mangoes did he remain with?​
Zinaida [17]

Answer:

60%

Step-by-step explanation:

3/5 left x 100 = 60%

4 0
3 years ago
Read 2 more answers
Find the length of the missing side for each polygon so it has a perimeter given perimeter equals 35 cm
zloy xaker [14]
I am not seeing a picture so I am going to give you the instructions to do it yourself. All you would have to do is divide the total perimeter (35 centimeters) by however many sides the polygon has. For example, if it was a pentagon, then the equation would be 35/5, which would equal 7.
8 0
4 years ago
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