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melamori03 [73]
3 years ago
8

1. Suppose you are interested in knowing how many text messages eleventh graders send daily.

Mathematics
1 answer:
MatroZZZ [7]3 years ago
3 0

Answer:

Mean estimate is gotten by dividing total number of text messages for a month(or whichever period you choose, longer more accurate) by number of days in that month.

Step-by-step explanation:

-share questionnaires to students( 11th graders) at school daily asking how many messages they send per day. Collect immediately.

-do this for a month. This is to ensure they give less inaccurate answers.

-add up to get total value of text messages in a month

-divide this by number of days in the month

The number you get is the mean estimate of text messages sent by 11th graders per day(using a period of one month)

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Find the solution for 2-x/3=5
PtichkaEL [24]

Answer:

7

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
82, 62, 95, 81, 89, 51, 72, 56, 97, 98, 79, 85 order from least to greatest find the The median of the lower half of the data an
Studentka2010 [4]

Answer:

The median of the lower half of the data was determined to be 67 while the median of the upper half of the data was determined to be 92.

Step-by-step explanation:

<u>Step 1:  Order from least to greatest</u>

51, 56, 62, 72, 79, 81, 82, 85, 89, 95, 97, 98

<u>Step 2:  Determine the median of the lower half of the data</u>

There are 12 numbers which means that there is going to be 6 numbers on both sides of the data.  So using the first 6 numbers we will be able to determine the median of the lower half of the data.

51, 56, 62, 72, 79, 81

Since there is an even amount of numbers, that means that we will need to find the middle between the 3rd and 4th number.  We can do that by adding them up together and dividing by 2.

(62 + 72) / 2 = 67

Step 3:  <u>Determine the median of the upper half of the data</u>

So using the first 6 numbers we will be able to determine the median of the upper half of the data.

82, 85, 89, 95, 97, 98

Since there is an even amount of numbers, that means that we will need to find the middle between the 3rd and 4th number.  We can do that by adding them up together and dividing by 2.

(89 + 95) / 2 = 92

Answer: The median of the lower half of the data was determined to be 67 while the median of the upper half of the data was determined to be 92.

5 0
2 years ago
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8?
zmey [24]
2x² + 3x -8 = 0

a = 2 , b = 3 , c = -8
So..
D = b²-4ac = 9 + 64 = 73

for bigger solution , use x = -b + √D / 2a
For smaller solution, use x = -b - √D / 2a

So
= -3 + √73 / 2. 2
= 1/4 (√73 -3)

Hopefully helpfull.. ^_^
8 0
3 years ago
Read 2 more answers
May please someone help me?
MissTica
.484 is the ansewer since 4.4 *.11 is .484 hope this helps
5 0
3 years ago
What is the solution to the equation -5 =8m +12 /4
Dima020 [189]
m = -1

-5 = 8m + 12/4
-5 - 12/4 = 8m
4(-5) - (12/4) = 4(8m)  
 
*to remove the denominator, multiply each figure by 4.

-20 -12 = 32m
-32 = 32m
-32/32 = 32m/32
-1 = m

m = -1

To check:

-5 = 8m + 12/4
-5 = 8(-1) + 3
-5 = -8 + 3
-5 = -5

3 0
3 years ago
Read 2 more answers
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