Answer:
s = 19.7
Step-by-step explanation:
First we need to calculate the mean x' of the sample as:
We sum all the scores and divide them by the number of scores.
Then, the standard deviation s is calculated as:
We square every score less the mean, sum every value, then divide that by the number of scores less 1 and finally, we calculate the square root.
So, the standard deviation of the sample is 19.7
Answer:
There is no drawing or pic. You might want to re-post it. ^^
Step-by-step explanation:
Answer:
16.65
Step-by-step explanation:
7.25 + 9.4 = 16.65
Answer:
Option C, x/12
Step-by-step explanation:
<u>Step 1: Convert words into an expression</u>
Which expression represents how many years are in x months?
x/12
<em>Because this will give us the amount of months over 12 which gives us the amount of years.</em>
<em />
<u>Example: Find out how many years are in 30 months</u>
x/12
30/12
<em>2.5 years</em>
<em />
Answer: Option C, x/12
Answer:
1. Consider a hot pot taken off the stove and placed on a tile countertop. At first it cools quickly. As it cools, the difference in temperature between the pot and the room air becomes less, and so it takes a long time for the pot to lose enough heat to match room temperature. Two objects at the same temperature are said to be in equilibrium.
2. When a liquid changes into a gas it absorbs energy. When it changes into a solid it gives off energy...If a solid (dry ice for example) is allowed to sublimate into a gas, it absorbs heat - that's why it feels cold when you touch ice. So, if a gas changes into a liquid, it give off heat as an opposite effect. Anytime you compress a gas, it gets warmer.
