How close is the theoretical distribution for the middle five columns? These columns are less than 3 up and down from the theoretical mean (13). Because the theoretical standard deviation is 2.55, these five bins encompass about standard deviation. Use the counters at the top of each column to find the number of balls in each of the five central columns and enter your values in the table. Add these five values and enter the sum in the Total column. How closely does this total match the theoretical percentage of balls that you would expect to land in this area ( standard deviation from the mean)?

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

42.4

step-by-step explanation:

convert to decimal

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!