Answer:2d+3
2(8)+3
Multiply 2 and 8
16+3
19
So the answer is 19
Step-by-step explanation:
Given the assumption of a normal distribution with a mean of 100 and a standard deviation of 15, a score of 130 represents a z-score of 2. In different mostly older handbooks of descriptive statistics you can find a ‘from z to percentile-table’. Nowadays it’s more easy to use the computer. Using R, a free and open source statistical environment (www.r-project.org), you can use the command pnorm (130, 100, 15) and it will give 0.9772. Because yo want the proportion above that score you use 1-pnorm (130, 100, 15). Another way of writing in R and with for example 3 IQ-scores:
perc = pnorm (c (70, 100, 130), 100, 15)
(1 - perc)
gives you the above-proportion of the IQ-scores of respectively 70, 100 and 130.
Answer:
.012km/hr
Step-by-step explanation:
(1200cm)(1m/100cm)(1km/1000m)=0.012km/hr
RE is a line, so angles RPL and EPL form a linear pair and are supplementary.
Supplementary angles are two angles whose measures add up to 180 degrees.
3z + 2z = 180
5z = 180
z = 36
m<RPL = 3z = 3 * 36 = 108
m<EPL = 2z = 2 * 36 = 72
Answer: D. 108 and 72
