Answer:
60 ≥ T ≥ 52
Step-by-step explanation:
The temperature will never be more than 60°, but no less than 52°. So we would use the "more than or equal to" symbol (≥) on the left of T to show that the temperature (T) will be less than or at 60°. And we use the "less than or equal to" (≤) on the right of T to show that the temperature (T) will be more than or at 52°. Hope this helps! Feel free to ask any questions!
B. Females typically spend less time than males on the sites
Part 1 : Marlow wants to know how many students in his school enjoy watching the TV news. He asks all 27 students in his art class and finds that 30% of his classmates enjoy watching the TV news. He claims that 30% of the school's student population would be expected to enjoy watching the TV news. Is Marlow making a valid inference about his population?
No, it is not a valid inference because he asked all 27 students in his art class instead of taking a sample from the school
No, it is not a valid inference because his classmates do not make up a random sample of the students in the school
Yes, it is a valid inference because he asked all 27 students in his art class
Yes, it is a valid inference because his classmates make up a random sample of the students in the school
Answer = The correct answer is <span>B because Marlow was supposed to ask random kids and they were not suppose to be in his class.
Part 2 : </span><span>Carl takes a random sample of 100 students in his school and finds that 72% of the sample prefers pizza over burgers. There are 1,500 students in the school. Based on the sample proportion, how many students in the school would be expected to prefer pizza over burgers? </span>
72
100
1,080
<span>1,500
</span>
<span>1500 / 100</span>×72<span>= 1080</span><span>
</span>
54-6= 48
5/3= 1.67
1.67*48=80.16