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
Romashka-Z-Leto [24]
3 years ago
5

The histogram represents the distributions of boiling temperatures, in degrees Celsius, of tap water and a mixture of salt water

. The standard deviation of the tap water data is 1.129. The standard deviation of the salt water data is 1.107. Which explains why the standard deviation is the best measure of variability to use to compare the data?
The two distributions are each nearly symmetric.
The distributions do not overlap on the same range of temperatures.
The distribution of salt water boiling temperatures is left-skewed.
The distribution of tap water boiling temperatures is right-skewed.
Mathematics
1 answer:
Usimov [2.4K]3 years ago
4 0

Answer:

The two distributions are each nearly symmetric.

Step-by-step explanation:

Symmetric distributions are those in which the data occurs in regular frequencies.

If we calculate the difference between the two standard deviations we find that it is only  0.022 which may be due to the physical or chemical properties of water or salt. So it lies within the same range and is almost symmetrical.

We cannot say that the distributions do not overlap on the same range of temperatures because they lie within the same range.

These two options are also incorrect as they are totally opposite of each other. Suppose the  distribution of salt water boiling temperatures is left-skewed then the distribution of tap water boiling temperatures cannot be  right-skewed as they have the same range and vice versa.

You might be interested in
X^2-7x-34=10<br><br> Please help me answer this question thank you
elena-s [515]

Answer: x = 4,11

Step-by-step explanation:

x^2 - 7x - 34 - 10 = 0

x^2 - 7x - 44 = 0

Factorise it

x^2 - 11x - 4x - 44 = 0

x ( x - 11 ) - 4 ( x - 11 ) = 0

(x-4)(x-11) = 0

x = 4,11

6 0
2 years ago
Read 2 more answers
Solve for q.<br> 3(q − 7) = 27<br><br> q =
Whitepunk [10]

Answer:

<em><u>The</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u>,</u></em><em><u> </u></em><em><u>q</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>16</u></em><em><u>.</u></em>

Step-by-step explanation:

1) Divide both sides by 3.

q - 7 =  \frac{27}{3}

2) Simplify 27/3 to 9.

q - 7 = 9

3) Add 7 to both sides.

q = 9 + 7

4) Simplify 9 + 7 to 16.

q = 16

<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>q</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>16</u></em><em><u>.</u></em>

8 0
3 years ago
Read 2 more answers
James and Sarah went out to lunch. The price of lunch for both of them was $20. They tipped their server 15% of that amount.
Wittaler [7]

\bf \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{15\% of 20}}{\left( \cfrac{15}{100} \right)20}\implies 3~\hfill \begin{array}{llll} \stackrel{\textit{price + tip}}{20+3\implies 23}\\\\ \stackrel{\textit{each one paid half of 23}}{11.5} \end{array}

4 0
3 years ago
Read 2 more answers
A student's grade depends on her score on four equally-weighted exams. Her average on the first three exams is 92. What must she
Sergeeva-Olga [200]
3x92 = 276 (first 3 exams)
average of at least 90 (90 x 4 = 360)

360 - 276 = 84

Answer
<span>she needs to score at least 84 on the fourth exam </span><span>in order to guarantee a final average of at least 90</span>
4 0
3 years ago
How to find the θ in this equation: tan(θ+16°)=1/tan(θ+60°) by using the trigonometric identities?thanks
DedPeter [7]

Answer:

\huge \theta  =7°

Step-by-step explanation:

tan( \theta + 16 \degree) =  \frac{1}{tan( \theta + 60 \degree) }  \\ tan( \theta + 16 \degree) =cot( \theta + 60 \degree) \\ tan( \theta + 16 \degree) = tan \{90 \degree - (\theta + 60\degree) \} \\ \theta + 16 \degree = 90 \degree - \theta  -  60\degree \\ \theta +\theta  = 30 \degree - 16\degree \\2 \theta  = 14 \degree  \\ \theta  =  \frac{14 \degree}{2}   \\   \huge \red{ \boxed{\theta  =7 \degree}}

7 0
3 years ago
Other questions:
  • Donna received a $90 gift card for a coffee store. She used it in buying some coffee that cost $7.24 per pound. after buying the
    6·2 answers
  • 1.2.8 -0.9+y<br> Your answer
    14·1 answer
  • Which is the correct answer?
    11·1 answer
  • Some friends went to lunch and split the bill equally. If each person paid $6.75, how many people went to lunch thinking. Use a
    7·2 answers
  • Escribe en lenguaje simbólico las siguientes expresiones, teniendo en cuenta que llamamos x a la edad de María. La edad que tení
    15·1 answer
  • Whats the slope (1,8) and (4,6)​
    15·1 answer
  • A cone has a volume of 100<img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" clas
    9·1 answer
  • Cho A= [ -4;4] B= ( 1;7] Xác định A B
    14·1 answer
  • Which compound inequality has no solution? x ≤ –2 and 2x ≥ 6 x ≤ –1 and 5x ≤ 5 x ≤ –1 and 3x ≥ –3 x ≤ –2 and 4x ≤ –8 ITS NOT D
    12·1 answer
  • Answer please nd thank u
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!