Greta collected data about the amount of time each student in her geography class spends studying. if the range of these data is 3, what does this reveal about the data?

a. all the students in her geography class spend exactly 3 hours studying.
b. the smallest and largest data values are 3 units away from each other.
c. all the students in her geography class spend an average of 3 hours studying.
d. he middle data value for time spent studying by all students in her class is 3 hours.

B. The smallest and largest data values are 3 units away from each other.

Step-by-step explanation:

The range of a data set is defined as the subtraction of the smallest value in the data set to the largest value in the data set. Then, the smallest amount of time is 3 units away from the largest amount of time.

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.

step-by-step explanation: