- Surveying the boys in the freshman class is biased. It doesn’t take a sample from all of the school, it is from only one grade and one gender.
-Surveying every other student in the cafeteria would be biased IF only a certain grade was in there at a certain time. If every student was in the cafeteria at the same time, it would be non biased.
-Students in her math class is biased- it only considers those in a certain class, not everyone.
-20 from each grade at random is NOT biased, it considers every grade and 20 random students.
-Chess club is biased. Only students in one particular group get to answer. Hope this helps!
Let h be the price of the helmet (not hemelt). Then 0.05h= $1.50.
To determine the price of the helmet, divide both sides of this equation by 0.05:
h = $30
The helmet is $30 before sales tax is applied, and $31.50 with tax.
Answer:
135°
Step-by-step explanation:
Interior angle= (n-2)/n ×180°
n= no. of sides
so,
putting the value of n which is 8
(8-6)/8 × 180
=135°
Answer:
2
Step-by-step explanation:
i searches it up
1/2 + 1 1/2 + 1/3. you need to change them so that they all have a common denominator and that would be 3/6 + 1 3/6 + 2/6. that's gives you 1 8/6 which equals 2 2/6 which in simplest form is 2 1/3