Enter each data set into the statistics calculator. make note of the histogram, mean, and median of each data set. a = {10, 12, 12, 6, 8, 5, 4, 10, 8, 10, 12, 12, 6} b = {8, 8, 8, 7, 9, 7, 9, 10, 6, 8} which statements are true about the data sets? check all that apply. set a is symmetrical. set b has the same mean and median. set b is right skewed. set a is left skewed. the median of set a is larger than the mean of set a.

Skewed data set is non-symmetrical, and is biased over one side. For the given data sets, the true statements are:

Data set which has symmetry in values vs frequency graph(histogram) for some vertical axis, is called symmetrical data set.

When the data set is not symmetrical and its graph is leaning on some side(left side or right side), then such data set is called skewed data set(skewed left, or right, respectively).

Median of right skewed data is higher than symmetric data with same range, and vice versa for left skewed data(ie smaller median than symmetrical data).

For the symmetrical data(specially bell distribution), the mean, median and mode lie on same point(the point over which the vertical line of symmetry lies).

Arranging the data sets with their values to frequencies:

For set A:
4 1

5 1

6 2

8 2

10 3

12 4

For set B:

6 1

7 2

8 4

9 2

10 1

The histogram plotted for set A will be leaning on right, as frequency increases as value increases. Thus, it is right skewed.

The histogram plotted for set B will be symmetric about value 8, as frequency before value 8 and after value 8 are symmetric(see the pattern 1, 2, 4,2,1 )

And therefore, for the given data sets, the true statements are:

Learn more about skewed distributions here:

link

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.