Answer:
114.12
Step-by-step explanation:
A = (a+b)/2 ×h
= (6.2 + 25.5)/2 ×7.2
=114.12
Answer:
1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.
2) between 20 and 25 --> 21-25/2.9 = -1.38
Step-by-step explanation:
Problem #1:
- Using the z-score formula, z = (x-μ)/σ/n, where x is the raw score = 20 mpg,μ is the population mean = 21 mpg , σ is the population standard deviation = 2.9, n = random number of samples.
<h3><u>X < 20</u></h3>
- = z = 20 - 21/2.9/√25
- = z = -1/2.9/5
- = z = -1.72414
<h2><u><em>Now</em></u></h2>
<em>P-value from Z-Table:</em>
<h3><u>P(x<20) = 0.042341</u></h3>
Problem #2:
<h3>21-25/2.9 = -1.38</h3>
Answer:
5.414
Step-by-step explanation:
Formula to find circumference is 3.14 x 2r
So we can create a algebraic expression.
3.14 x 2r = 34 / 3.14 = 10.828 / 2 = 5.414
Answer:
20 CDs
Step-by-step explanation:
Assuming you can't buy 1 CD, you have to buy 2 CD's for 15.95, let's see how many 2CD-Batches we can buy with 60:
60/15.95 = 3.76 CD batches
We can't buy the fractional amount, so we have to buy "3" 2-CD-Batches.
Thus, we will have 3 * 2 = 6 CD's now
Since we had 14 and now we buy 6, we will have
14 + 6 = 20 CDs now.
20 CDs
Well, elevation in how high the hill is from sea level, so the higher the mile, the farther away it is from sea level. The one farthest from sea level is Britton and the one closest is Ray.
