<span>6 + 8x - 9 = 11x + 14 - 3x
8x + 3x - 11x = 14 + 9 -6
11x - 11x = 17
0 =17 This is not true.
When we have this kind of format, we know it is Never true.
</span>
To make your box and whisker plot, you will order of the data from least to greatest and find the median,lower quartile, upper quartile, lower extreme and upper extreme.
Please the attached picture for these answers labeled.
You will use these to create your box and whisker plot.
See the picture for the plot.
a. Find the probability that an individual distance is
greater than 214.30 cm
We find for the value of z score using the formula:
z = (x – u) / s
z = (214.30 – 205) / 8.3
z = 1.12
Since we are looking for x > 214.30 cm, we use the
right tailed test to find for P at z = 1.12 from the tables:
P = 0.1314
b. Find the probability that the mean for 20 randomly
selected distances is greater than 202.80 cm
We find for the value of z score using the formula:
z = (x – u) / s
z = (202.80 – 205) / 8.3
z = -0.265
Since we are looking for x > 202.80 cm, we use the
right tailed test to find for P at z = -0.265 from the tables:
P = 0.6045
c. Why can the normal distribution be used in part (b),
even though the sample size does not exceed 30?
I believe this is because we are given the population
standard deviation sigma rather than the sample standard deviation. So we can
use the z test.
Answer:
59.5 km
Step-by-step explanation:
3.5 by 17 Multiply the cm by the km and you get your answer
Answer:
Step-by-step explanation:
For b. 4 squared is 16 and -4 squared is also 16. They are equal.
For c. the square root of a squared is a; the square root of b squared is b, so the statement "...implies a<b for all real numbers a and b" is true.