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denis-greek [22]
3 years ago
6

4. Determine whether each sample is biased or unbiased. Include your reason why for full credit!

Mathematics
1 answer:
AnnyKZ [126]3 years ago
8 0

Answer:

4) Unbiased; 5) Biased

Step-by-step explanation:

4) states that the audience of the poll was "random" people meaning it's a good foundation of data as they weren't chosen for the employee noticing their specific affiliation with being overjoyed with the product (as the question doesn't say) or for not liking (have complaints about it) the product.

5) The audience of the poll is fans of a sports team--definitely biased because they'll say they love the 49ers being a fan for them. Leads to skewed results not representing a portion of a population accurately.

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ashley deposits $500 into an account that earns 2% interest compounded 3 times per year . how much money will ashley have in her
Assoli18 [71]
Amount in compound interest = p(1 + r/t)^nt where p is the initial deposit, r = rate, t = number of compunding in a period and n = period.

Here, Amount after 4 years = 500(1 + (2/100)/3)^(4 x 3) = 500(1 + 0.02/3)^12 = 500(1 + 0.0067)^12 = 500(1.0067)^12 = 500(1.083000) = $541.50
5 0
3 years ago
Rationalise the denominator and simplify 6/√3​
vekshin1

Answer:

2√3

Step-by-step explanation:

4 0
3 years ago
Determine the type and number of solutions of −4x2 − 3x + 7 = 0.
Kaylis [27]

Answer:

Step-by-step explanation:

You have to use the discriminant for this. If the quadratic is -4x^2-3x+7, then

a = -4, b = -3, and c = 7. The formula for finding the discriminant is

D=b^2-4ac which comes from the quadratic formula, but without the square root sign. Filling in:

D=(-3)^2-4(-4)(7) which simplifies down to

D = 9 + 112 so

D = 121. This is a perfect square, so the solutions will be 2 real. Just so you know, you will NEVER have a solution like the one offered in the third choice down. If you have one imaginary root, you will ALWAYS have a second by the conjugate rule.

7 0
3 years ago
You need a total of 50 pounds of two types of ground beef costing $1.25 and $1.60 per pound, respectively. A model for the total
olga nikolaevna [1]

Answer:

a mix with a total cost of x=$73.

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6 0
3 years ago
Solve the equation. - 13 = 5+X​
Orlov [11]
Answer:

-13=5+x, rearrange the terms.
-x=5+13, add.
-x=18, invert the sign.
x=-18
4 0
3 years ago
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