9
Step-by-step explanation:
woody is 5
buzz is 3
mr potato head is 3
rex is 7
alien is 1
Three students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. Then as per the given sample data,
(a) The sample means of the backpacks are: 6.375,6.375,6.625
(b) Range of sample means: 0.25
(c)The true statement is: The closer the range of the sample means is to 0, the less confident they can be in their estimate.
For the first sample, mean= 6.375
For the second sample, mean= 6.375
For the third sample, mean= 6.625
Range of sample means=Maximum Mean- Minimum Mean
= 6.625 - 6.375
= 0.25
The students will estimate the average backpack weight of their classmates using sample means, the true statement is:
The closer the range of the sample means is to 0, the more confident they can be in their estimate.
Learn more about range here:
brainly.com/question/24326172
#SPJ1
Answer:
$126.20
Step-by-step explanation:
<u><em>Given:</em></u>
<em>Mike is buying eight tickets for a concert. </em>
<em>A package of five tickets costs $74.45. </em>
<em>Individual tickets cost $17.25 each.</em>
<u><em>To Find:</em></u>
<em>What is the least amount that Mike can pay for eight tickets? Be sure to include a decimal point in your answer.</em>
<u><em>Solve:</em></u>
<em>Since we know that:</em>
<em>A package of five tickets costs $74.45. </em>
<em>Individual tickets cost $17.25 each.</em>
<em>Hence we know that 5 + 3 = 8</em>
<em>Thus,</em>
<em>$74.45 = 5 tickets</em>
<em>Now for the 3 tickets we can do individual tickets which cost $17.25</em>
<em>$17.25 × 3 = 51.75</em>
<em>Then we add both together:</em>
<em>51.75 + 74.45 = $126.20</em>
<em />
<u><em>Kavinsky</em></u>
Answer:
Ok, I did this unit a little while ago but I think I solved it:
Hyp = 16
Opp = 8
Adj = 13.856
0 = 30 degrees
Step-by-step explanation:
You were on the right track, with the sin = opp/hyp, you just have to follow the equation given. So if sin = 8/16, then opp = 8 and hyp = 16 due to the transitive theorem.
Now you have to use the pythagorean theorem for the third side (adj), so:
a^2 + 8^2 = 16^2
The answer would be around 13.856 (round to what's required.)
Finally, you have to find 0. basically, since you're finding an angle measure, use the inverse of sin. the equation would look like this:
sin-1(0)=8/16
so on your calculator, you should put:
sin-1(8/16)
the angle measure is 30, meaning its a 30 60 90 triangle.
To find the x-intercept, throw in 0 for y:
So the x-intercept is (2,0).
To find the y-intercept, throw in 0 for x:
So the y-intercept is .
