1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gennadij [26K]
3 years ago
11

The brain volumes ​(cm cubedcm3​) of 50 brains vary from a low of 922922 cm cubedcm3 to a high of 14961496 cm cubedcm3. use the

range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 161.7161.7 cm cubedcm3​, assuming the estimate is accurate if it is within 15 cm cubedcm3.
Mathematics
1 answer:
vesna_86 [32]3 years ago
4 0
The range rule of thumb is that the range is four times the standard deviation. The range in this case is 922 cubic cm to 1496 cubic cm, i.e., 574 cubic cm.
Therefore, according to the rule, the standard deviation is 574 cubic cm/4 = 
143.5 cubic cm. The actual standard deviation is 161.7 cubic cm. The difference is 161.7 - 143.5 = 18.2. Since this is greater than 15 cubic cm, the rule in this case is not accurate.
You might be interested in
Please help!
ladessa [460]
Area = length x width
the "big" rectangle: length = 15,  width = 14
the blue rectangle is: length = 15 - 4,  width = 14 - 6

Area of blue rectangle = (15 - 4)(14 - 6)
Answer: D
8 0
3 years ago
Read 2 more answers
Show how Carly can work out 171/2% of 240 in her head
KATRIN_1 [288]

17 ½ % of 240

First option

Change  the fraction ½ to a decimal. It would be 0.5 ( 1 divided by 2)

½=0.5

You will add the whole number 17 to the result.

17 + 05 = 17.5

Now you will divide by 100 (percent)

17.5 /100  To divide a decimal by 100,  move the decimal point two places to the left.

17.5 /100 = 0.175   times 240

0.175 x 240 = 42

Second option

Change the percent to an improper fraction

17 ½= 35/2 (you have to multiply (2 x 17) plus 1 equals 35 over 2 ( keep the denominator). It will be 35/2.  Put the other number (240) over 100 and multiply.

35/2 x 240/100 = 42

There is another way . You can simplify

Cancel all the zeros that you have and start to reduce.

            6

7       12

35 x 24<span> 0   </span> =  42

2       10 0

 1          5

           1

17 ½ % of 240  =  42

5 0
3 years ago
Please someone help me ..
scZoUnD [109]

Answer:

tan80°

Step-by-step explanation:

there u gojejdndndj

7 0
3 years ago
Four less than 2 times the quantity of a number minus 3 is 12
svetlana [45]

Answer:

11.

Step-by-step explanation:

(2(n-3))-4=12

(2n-6)-4=12 <em>distribute</em>

2n-6-4=12

2n-10=12

2n=12+10 <em>isolate</em><em> </em><em>n</em><em> </em>

2n=22

2n÷2=22÷2

n=11

7 0
3 years ago
What is the value of c in the equation x^15/x^c =x^6
Galina-37 [17]

Step-by-step explanation:

\frac{ {x}^{15} }{ {x}^{c} }  =  { x}^{6} \\  {x}^{15 - c}  =  {x}^{6}

15 - c = 6

15 - 6 = c

9 = c

c = 9

3 0
3 years ago
Other questions:
  • Round 2,042,822 to the nearest 1,000
    10·1 answer
  • What is the value of the 3 in 136,422
    9·1 answer
  • Can someone please graph this and tell me what the slope is??
    6·1 answer
  • While I was walking to sched this morning I saw 2 ants and 2 butterflies.
    5·1 answer
  • Write the polynomial which represents the perimeter of a triangle whose sides are represented
    13·1 answer
  • Please help me i dont understand
    15·2 answers
  • Match the monomer to the correct macromolecule<br>​
    8·1 answer
  • B) Find the standard deviation of the number of nights potential customers will need.
    5·1 answer
  • Rasheed is buying wings and quesadillas for a party. A package of wings costs $8. A package of quesadillas costs $10. He must sp
    10·1 answer
  • stephanie and jenny each improved their yards by planting rose bushes and geraniums. they bought their supplies from the same st
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!