Answer: 5 classes.
Step-by-step explanation:
You can use the rule to determine the number of classes for a frequency distribution.
The rule says that where
is the number of classes
is the number of the data points
We know that the number of data points is = 20.
Next, we start searching for so that we can get a number 2 to the that is larger that the number of data points.
This suggests that you should use 5 classes.
Answer:
x=3
Step-by-step explanation:
3x + 14 = 23
3x=23-14
3x=9
x=9/3
x=3
option A is the correct answer
Answer:
4. 6.6
1. 9043
2. 0.52
Step-by-step explanation:
3+2.24+1.36=6.6
10000-957
1.3-0.78
Use the slope formula below:

To form an equation of a line - we need to find a slope and the y-intercept from y = mx+b. We are given two points which we can substitute in the formula.

We have finally got the slope. Next is to find the y-intercept. First we rewrite the equation of y = mx+b by substituting the slope.

The equation above is the slope-intercept form. Substitute m = -7/6 in the equation.

Since the graph passes through (0,0) which is an origin point. In y = mx+b if the graph passes through origin point, that means the b-value is 0. Therefore:

Answer
Hope this helps and let me know if you have any doubts! Good luck on your assignment!