What is the standard deviation for 212,249,212,248,239,212,216,234,248
1 answer:
Answer:
15.90
Step-by-step explanation:
The formula for standard deviation, σ, of a population is
We can use a table to organize the calculations.
<u> x </u> <u>x - µ </u> <u>(x - µ)² </u>
212 -18 324
249 19 361
212 -18 324
248 18 324
239 9 81
212 -18 324
216 -14 196
234 4 16
<u> 248 18 324</u>
2070 2274
Sum= 2070
N = 9
µ = Sum/N = 2070/9 = 230
You might be interested in
Answer:
The proof is given below.
Step-by-step explanation:
Given the two triangles which are similar we have to prove that the ratio of their angle bisectors and the side or we can say that the ratio of their altitude are proportional.
In ΔABP and ΔDEQ
∠1=∠2 (Given)
∠3=∠4 (each 90°)
By AA similarity rule ΔABP≅ΔDEQ
As if the two triangles are similar then their corresponding sides are proportional
⇒
Hence, Corresponding angle bisectors of similar triangles are proportional and their ratio is equal to the ratio of altitude.
Answer:
Graph uploaded!
Step-by-step explanation:
<u>First, let's solve the distributive property.</u>
- 4/5(x - 2) ≤ 6
- => 4x/5 - 8/5 ≤ 6
- => 4x/5 ≤ 6 + 8/5
- => 4x/5 ≤ 38/5
- => x ≤ 19/2
Now, let's plot this inequality on the line. Please check my graph.
Hoped this helped!
