When jim surveyed 5 sixth-grade students at the community skating rink, he found that only 1 out of the 5 had completed the science project. he knows there are about 160 sixth-grade students in his community, so he infers that around 32 students have finished their science project. is this a good inference?

No, Jim did not make a good inference.

Step-by-step explanation:

Given: Jim surveyed  only 5 sixth-grade students at the community skating rink, he found that only 1 out of the 5 had completed the science project.

⇒ Sample space = 5

His interference was 32 students have finished their science project if  160 sixth-grade students in his community.

But the sample space (5) is too small and it can be biased as he only asked students at the community skating rink.

Therefore, Jim did not make a good inference.

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.