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
Elden [556K]
3 years ago
7

The weights of 1,000 men in a certain town follow a normal distribution with a mean of 150 pounds and a standard deviation of 15

pounds.
From the data, we can conclude that the number of men weighing more than 165 pounds is about
, and the number of men weighing less than 135 pounds is about
Mathematics
2 answers:
ludmilkaskok [199]3 years ago
6 0
68% fall within +/- 1 SD, so men above that 1 SD (165) are: (100-68)/2
32/2 = 16% above 165 and also 16% below 135
Zinaida [17]3 years ago
3 0

Answer:

Step-by-step explanation:

Let X be the weights of 1000 men in a certain town.

Given that X is N(150, 15)

P(X>165) = P(Z>1) =0.5-0.3413 = 0.1687

No of men weighing more than 165 pounds in 1000 men = 1000(0.1687)

=168.7 =169 men apprxy.

Similarly

P(X<135) = P(Z<2)=0.5-0.4775 = 0.0225

No of men weighing less than 135 pounds is about =0.0225(1000)

= 22.5

=22

You might be interested in
Abdullah earns $10 an hour delivering newspapers on his bicycle . He started with $20 in his bank account. what is the rate and
elixir [45]

Explanation:

The equation for this problem can be modeled in y = mx + b form.

m represents the rate of change and b represents the initial value or constant.

y = 10x + 20

x represents the number of hours he spent delivering newspapers

y is his total money after whatever number of hours he worked

The rate is 10, because it determines how much money he earns for each hour.

The y-intercept is 20, representing the starting amount of money in his bank account.

6 0
3 years ago
2x^2-7x=-1 what are the solutions in decimal form?
Scorpion4ik [409]
0.14921894<span>3 or 3.3507811

Hope this helps!!
</span>
8 0
3 years ago
!!!!(Help me please)!!!!
Leona [35]

Answer:

The correct option is C

Step-by-step explanation:

A: We know that the lower quartile is 144, and the upper quartile is 129.5 is you add them all up it is going to equal 273.3. So we know that A can now be crossed out.

B: We know that the lower quartile is 146, and that means the upper quartile is 136.5. So adding all of these numbers up we ill get 282.5 So now <u>B can be crossed out</u>

C: The lower quartile is 114 and the upper quartile is 129.5 and when we add those two numbers up we are going to get 243.5. So we are going to keep this number

D: For the last one we know the lower quartile is 214 and upper is 129.5, and when we add this we get 343.5. So we can cross this out and<u> the only one we have left is going to be C</u>

<u>Hope this help's</u>

3 0
3 years ago
Read 2 more answers
Which inequality has a dashed boundary line when graphed? A y&gt;=3/5x+1 B y&gt;= -1/3x+1 C y&gt;3x+1
Ket [755]

Answer: C y>3x+1

Step-by-step explanation:

  • When we graph an  inequality with strictly greater of less than sign ('<' or '>'), then the graph has a dashed boundary line .
  • Further it indicates that it does not include the points on the line.

From all the given options , only C contains inequality with '>' sign .

Hence, y>3x+1 is the inequality has a dashed boundary line when graphed.

hence, the correct option is C.

4 0
3 years ago
10 points if you can answer what percent of 20 <br> Is 0.6
UNO [17]
Dividing 20 by 100 gives us 1%. so 0.2 × 3 = 0.6 so it take 3 0.2s to get to 0.6. meaning 0.6 is 3% of 20.

7 0
3 years ago
Other questions:
  • What is the value of x​
    13·1 answer
  • Gordy is a goalie for a neighborhood soccer team.He played in 65% of the 20 games this season.In how man ygames did he not play?
    13·2 answers
  • Can you please help me
    11·1 answer
  • Which Quadratic equation is equivalent to (x-4)^2-(x-4)-6=0
    13·2 answers
  • Plz someone help me with this question
    8·1 answer
  • PLEASE HELP!! Look at picture for question thank you!!
    13·2 answers
  • The equation of a circle is given as x2+ax+y2+by=c where a, b, and c are constants. The radius of the circle is given by the exp
    8·2 answers
  • How many solutions are there to the following system of equations?<br> -3y = -2x - 6<br> 3 = x
    12·2 answers
  • Write an equation in Point-Slope Form for the given information.<br><br> m=4/5;(2,0)
    7·1 answer
  • A line with slope
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!