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iVinArrow [24]
1 year ago
7

The heights of a group of sixth graders' are summarized below. If another sixth grader were to be measured, what would be a good

prediction for her height?Range—10, from 50 to 60Mode—57Median—55Mean—5550 inches55 inches57 inches60 inches
Mathematics
1 answer:
olga nikolaevna [1]1 year ago
3 0

Using the mean, median and mode we can assume that a good prediction for her height would be 55 inches.

In the given data ,

Range of the data is 10. So all the values are between 50 and 60.

mode of the data is 57 , and the mean is 55 and the median is 55

Therefore a random 6th grader can have any value between 50 and 60 since it is the range.

Now the mean and median of the function will be closest to a random value.

Hence of all the options 55 is the most efficient explanation of the central tendency of the dataset .

When the probability density function contains a large number of local maxima, the edge points of a continuous distribution are frequently referred to as the distribution's modes.

Any x value that causes the density function probability of a variate to reach a locally maximum value is often thought of as a mode, making any peak a mode.

The median is the value that divides the top and bottom halves of a large dataset, a demographic, or a probability distribution in statistics and probability theory.

Hence of all the options 55 is the most efficient explanation of the central tendency of the dataset .

To learn more about mode visit:

brainly.com/question/300591

#SPJ9

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John is comparing the prices of two bags of the
Lady bird [3.3K]

Answer:

So, its better to buy larger bag

Step By Step Explanation:

Let

Smaller bag hold = x ounces

Price of x ounce in smaller bag = $ y

Price of 1 ounce in smaller bag = \frac{y}{x} ....(1

Larger bag will hold = x + 10 ounces

Price of x+10 ounces in larger bag = y + 1.5

Price of 1 ounce in larger bag = \frac{y + 1.5}{x + 10} ...(2

Now equation 1 tells that 1 ounce in smaller costs \frac{y}{x}, and equation 2 tells in ounce in larger bag costs \frac{y + 1.5}{x + 10} .

Now as we can see, we can get equation 2 from equation 1 by increasing numerator by 1.5 and denominator by 10. In this case denominator has increased more than numerator so the value of overall fraction \frac{y + 1.5}{x + 10} would be less than \frac{y}{x} . It means our larger bag has less price per ounce.

So, its better to buy larger bag

8 0
3 years ago
Sarah sells beaded necklaces she makes a profit of $4 on every necklace she sells which table represents the profit Sarah makes
Bogdan [553]

Answer:

<u>The correct table is A.</u>

Correct statement and question:

Sarah sells beaded necklaces she makes a profit of $4 on every necklace she sells which table represents the profit Sarah makes.

A.

Necklaces Sold Profit $

 4                           16

 6                           24

 8                           32

10                          40

B.  

Necklaces Sold Profit $

 4                           8

 6                           10

 8                           12

10                          14

C.

Necklaces Sold Profit $

 4                           4

 6                           8

 8                           12

10                          16

D.

Necklaces Sold Profit $

 4                           16

 6                           20

 8                           24

10                          28

Source:

North Carolina Practice Test

Step-by-step explanation:

If Sarah makes a profit of $ 4 on every necklace she sells, then:

4 necklaces = 4 * 4 = $ 16

6 necklaces = 6 * 4 = $ 24

8 necklaces = 8 * 4 = $ 32

10 necklaces = 10 * 4 = $ 40

<u>The correct table is A.</u>

6 0
3 years ago
Give full working and explanation
vlada-n [284]

Answer:

1309 marbles

Step-by-step explanation:

  • Kadon has 727 marbles.
  • Simon has: 727 - 145 = 582 marbles

All together:

  • Kadon marbles + Simon marbles
  • 727 marbles + 582 marbles
  • 1309 marbles
8 0
3 years ago
Why is -a² is always negative (a ≠ 0) and why is (-a)² is always positive?
hjlf
-a^2=(-1)\cdot a\cdot a

Regardless of the sign of a, we have a\cdot a=a^2\ge0 (never negative). But multiplying by -1 makes it negative.

On the other hand,

(-a)^2=((-1)\cdot a)^2=(-1)^2\cdot a^2=1\cdot a^2=a^2

which can never be negative for real a.
6 0
3 years ago
Mrs. Penn charges $10.00 an hour on top of a $5.00 flat fee for tutoring. Mrs. Smith charges $14.00 an hour with no flat fee. Wr
Anna71 [15]

Answer:

1.25 Hours (1 hour & 15 minutes)

Step-by-step explanation:

14x = 5 + 10x  

Subtract 10x from both sides

4x = 5

Divide by 4 on both sides

x = 1.25

It will take 1 hour and 15 minutes (1.25 hours) for Mrs. Penn and Mrs. Smith to be paid the same amount.

6 0
2 years ago
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