Answer:
0.0579 is the probability that mean systolic blood pressure is between 119 and 122 mm Hg for the sample.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 114.8 mm Hg
Standard Deviation, σ = 13.1 mm Hg
Sample size = 23
We are given that the distribution of systolic blood pressures is a bell shaped distribution that is a normal distribution.
Formula:
![z_{score} = \displaystyle\frac{x-\mu}{\sigma}](https://tex.z-dn.net/?f=z_%7Bscore%7D%20%3D%20%5Cdisplaystyle%5Cfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D)
Standard error due to sampling:
![\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{13.1}{\sqrt{23}} = 2.731](https://tex.z-dn.net/?f=%5Cdisplaystyle%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%20%3D%20%5Cfrac%7B13.1%7D%7B%5Csqrt%7B23%7D%7D%20%3D%202.731)
P(blood pressure is between 119 and 122 mm Hg)
![P(119 \leq x \leq 122) = 5.79\%](https://tex.z-dn.net/?f=P%28119%20%5Cleq%20x%20%5Cleq%20122%29%20%3D%205.79%5C%25)
0.0579 is the probability that mean systolic blood pressure is between 119 and 122 mm Hg for the sample.
8/10 = 0.8
Therefore, 0.8 (8/10) is put on the number line shown below.
35 is the answer
Explanation, the sum of interrior angme is 180degree
x+(3x+40)= 180
or, 4x= 180-40
or, x= 140÷ 4
or x = 35
Answer:
Option (d) is wrong.
Step-by-step explanation:
Slope is:
- rise over run
- The rate of change of a line
- Change in y over the change in x
- <em><u>The ratio of vertical change to the horizontal change. </u></em>
It can be given by mathematically as follows :
![m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{and}\\\\m=\dfrac{dy}{dx}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%5C%5C%5C%5C%5Ctext%7Band%7D%5C%5C%5C%5Cm%3D%5Cdfrac%7Bdy%7D%7Bdx%7D)
Hence, the option which is not a description of slope is (d) "the ratio of horizontal change compared to vertical change"
Answer:
6
Step-by-step explanation:
45/8=5.625
Since there are .625 children left, we need to add another ride to fill in what's left.