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
sergiy2304 [10]
2 years ago
10

A psychologist developed a new test of adult intelligence. The test was administered to 20 individuals, and the following data w

ere obtained.
104, 88, 121, 114, 107, 91, 95, 117, 109 ,105, 87, 93 ,134, 142, 122 ,95,115, 112 ,108, 108.

Construct a stem-and-leaf display for the data, using a leaf unit of 1.
Mathematics
1 answer:
Kay [80]2 years ago
8 0

Answer:

Stem        Leaf

8         |      7,8

9         |      1,3,5,5

10        |     4,5,7,8,8,9

11         |     2,4,5,7

12        |     1,2

13        |     4

14        |     2

Where 8|7 means 87 for example.

Step-by-step explanation:

For this case we have the following data:

104, 88, 121, 114, 107, 91, 95, 117, 109 ,105, 87, 93 ,134, 142, 122 ,95,115, 112 ,108, 108.

The first step is order this data set on increasing way and we got:

87, 88, 91, 93, 95, 95, 104, 105, 107, 108, 108, 109, 112, 114, 115, 117, 121, 122, 134, 142

And then we can create the stem leaf plot like this:

Stem        Leaf

8         |      7,8

9         |      1,3,5,5

10        |     4,5,7,8,8,9

11         |     2,4,5,7

12        |     1,2

13        |     4

14        |     2

Where 8|7 means 87 for example.

You might be interested in
#1 $11.49 for 3 packages and fid the unit rate.round to the nearest hundredth if necessary
mote1985 [20]
If you would like to find the unit rate, you can calculate this using the following steps:

$11.49 ... 3 packages
$x = ? ... 1 package

11.49 * 1 = 3 * x
11.49 = 3 * x         /3
x = 11.49 / 3
x = $3.83

The correct result would be $3.83.
3 0
3 years ago
Read 2 more answers
The linear combination method is applied to a system of equations as shown.
olga_2 [115]
If you apply the linear combination method to the system like:
<span>4(.25x + .5y = 3.75) → x + 2y = 15
(4x – 8y = 12) → x – 2y = 3
2x = 18
Then you can be sure that the solution of all this system is: (9,3). Hope this si what you were looking for</span>
7 0
3 years ago
Read 2 more answers
If an investment of $3000 grows to $4432.37 in eight years with interest compounded annually , what is the interest rate?
melamori03 [73]
\bf \qquad \textit{Compound Interest Earned Amount}&#10;\\\\&#10;A=P\left(1+\frac{r}{n}\right)^{nt}&#10;\quad &#10;\begin{cases}&#10;A=\textit{accumulated amount}\to &\$4432.37\\&#10;P=\textit{original amount deposited}\to &\$3000\\&#10;r=rate\to r\%\to \frac{r}{100}\\&#10;n=&#10;\begin{array}{llll}&#10;\textit{times it compounds per year}\\&#10;\textit{annually, thus once}&#10;\end{array}\to &1\\&#10;t=years\to &8&#10;\end{cases}

\bf 4432.37=3000\left(1+\frac{r}{1}\right)^{1\cdot 8}\implies \cfrac{4432.37}{3000}=(1+r)^8&#10;\\\\\\&#10;\sqrt[8]{\cfrac{4432.37}{3000}}=1+r\implies \sqrt[8]{\cfrac{4432.37}{3000}}-1=r&#10;\\\\\\&#10;0.0500001086\approx r\qquad\qquad\cfrac{r\%}{100}\approx 0.0500001086&#10;\\\\\\&#10;r\%\approx 100\cdot 0.0500001086\implies r=\stackrel{\%}{5}
6 0
3 years ago
At midnight, the temperature was -8° F. At noon, the temperature was 23° F. Which expression represents the increase in temperat
Mariana [72]

Answer:

C

Step-by-step explanation:

Increase is difference between ending and begining value so 23-(-8) =23+8.

In this case its absolute value because it has to be positive

6 0
3 years ago
Can someone help me please !!
masya89 [10]

Answer:

I think you answer is 85

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Suppose you are determining the growth rate of two species of plants. Species A is 25 cm tall and grows 3 cm per month. Species
    13·2 answers
  • Which expression is equivalent to -32 to 3/5 power
    8·1 answer
  • Select the correct answer.
    15·1 answer
  • What’s the unit rate of 4 and 20 <br> 8 and 40
    10·2 answers
  • There are 4 designd of necklaces available at a jewelry store. Each design is available in 3 types of stones. How many different
    15·1 answer
  • What is the degree of 5xyz​
    6·2 answers
  • Identify the line of reflection,<br> O X-axis<br> OY- axis
    8·1 answer
  • Find the difference. 8.6 - 0.047
    6·2 answers
  • Some number subtracted by -6 is 41. Multiply this number by-3. Then divide
    6·1 answer
  • Y-2=-4(x-1) in standard form
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!