Kim wants to know how many families in her small neighborhood of 70 homes would participate in a neighborhood sports event. she put all the addresses in a bag and drew a random sample of 35 addresses. she then asked those families if they would participate in the sports event. she found that 15% of the families would participate in the event. she claims that 15% of the neighborhood families would be expected to participate in the sports event. is this a valid inference?

Yes, this is a valid inference because she took a random sample of the neighborhood.

Step-by-step explanation:

As her survey was non bias and completely random and she found that 15% of the families would participate in the event. She claims that 15% of the neighborhood families would be expected to participate in the sports event. So, yes, this is a valid inference because she took a random sample of the neighborhood.

Yes Kim's inference is valid.

Step-by-step explanation:

Since she took a random sample of the neighbors she asked, she was able to make a valid inference.

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3

addition

step-by-step explanation: