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anyanavicka [17]

2 years ago

15

Identify the type of sample and whether it is a biased or unbiased sampling method.

1 answer:

iris [78.8K]2 years ago

4 0

Answer:

1. biased

2. unbiased

3. unbiased

4. biased

5. unbiased

Step-by-step explanation:

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elect all that apply. A card is randomly drawn from a deck of cards. (There are 52 cards in a deck, with 13 cards of each suit.)

raketka [301]

If the original experiment trial was 100 draws the
A. True - Experimental probability of drawing a club is 32%
B. True - Theoretical probability of drawing a diamond is 25%
C. True - Experimental probability of drawing a spade 90 times out of 500 trials

6 0

2 years ago

I need help with three and four

mart [117]

Answer:

3: $a^{2}+2ab+b^{2}$

4: $8x^{3} -12x^{2}+6x-1$

Step-by-step explanation:

Question 3 can be re-written as:

$(a+b)(a+b)$

which equals:

$a^{2}+2ab+b^{2}$

Question 4 can be re-written as:

$(2x-1)(2x-1)(2x-1)$

Doing the first 2 brackets gives us:

$(4x^{2} -4x+1)(2x-1)$

Expanding these two:

$8x^{3} -4x^{2} -8x^{2} +4x+2x-1$

Simplifying it:

$8x^{3} -12x^{2}+6x-1$

4 0

1 year ago

Read 2 more answers

Find the missing probability in the table below.<br> A. 0.25<br> B. 0.75<br> C. 0.15<br> D. 0.85

Furkat [3]

Answer:

The answer is option A

Hope this helps

3 0

2 years ago

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Which expression is equivalent to 27 + 45? 8(3 + 6) 8(19 + 37) 9(3 + 5) 9(18 + 36)

Sladkaya [172]

9(3+5) is equivalent because factoring a 9 out of both 27 and 45 leaves us with 9(3+5).

4 0

3 years ago

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Help me please ✌️ type while numbers OR decimals

TEA [102]

Answer:

1 bag: 51

6 bags: 306

12 bags: 612

4 0

3 years ago