Answer:
the mean is 14.8, the median is 15, the mode is 15, and the range is 7
Step-by-step explanation:
11,12,15,15,16,17,18
The slope is 2/5 or 0.4!
To figure out slope from a graph use the formula y2- y1/ x2- x1
We can substitute the numbers and letters in the formula for the ones on the chart
For example, x1 is -3 because it is the first “x” value on the chart. X2 is 2 because it is the second “x” value on the chart. Y1 is 0 because it is the first “y” value on the chart and y2 is 2 because it is the second “y” value on the chart.
To set up the formula get what is labeled as y2, 2, and subtract it by the y1, 0, that equals 2. Next, get your x2, 2, and subtract it by your x1, -3. The answer being 5.
Turn those calculations into a fraction- 2/5 or 0.4 if you simplify it
If you don’t get it at first don’t worry it takes practice!
Answer: C=8.5t
Step-by-step explanation:
If you were to divide the total cost (c) by the Time (t) for any of the numbers you would get 8.5.
Hope this helps
Answer:
Step-by-step explanation:
Let's write out a case for two specific questions being correct and the rest being incorrect:
,
The represents the chances of getting the question correct, as there are 5 answers and 1 correct answer choice.
The represents the chances of getting the question incorrect, as there are 5 answers and 4 incorrect answer choices.
The equation above does show the student getting two answers correct and three answers incorrect, but it only shows one possible case of doing so.
We can choose any two of the five questions to be the ones the student gets correct. Therefore, we need to multiply this equation by the number ways we can choose 2 from 5 (order doesn't matter): .
Therefore, the probability the student gets two questions correct is: