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3 years ago

Help!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

ivann1987 [24]3 years ago

5 0

I think it’s 700, but I’m not positive

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Swad attempted 56 free throws during the basketball season. He made

torisob [31]

Answer:

Step-by-step explanation:

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3 years ago

A customer service phone line claims that the wait times before a call is answered by a service representative is less than 3.3

8_murik_8 [283]

Answer:

Step-by-step explanation:

Let x be the wait times before a call is answered in phone calls.

The claim is x bar <3.3 minutes

Sample size n =62

Sample mean - x bar = 3.24 minutes

Population std dev = $\sigma = 0.40 minutes\\$

Since population std dev is known and also sample size is sufficiently large, we can use Z test.

$H_0: x bar = 3.3\\H_a: x bar$

(one tailed test)

Mean difference = 3.24-3.3 = -0.06 min

Std error of sample = $\frac{\sigma}{\sqrt{n} } =\frac{0.40}{\sqrt{62} } \\=0.0508$

Z = tset statistic = $\frac{-006}{0.0508} \\\\=-1.18$

p value = 0.119

Since p value > alpha, we accept null hypothesis.

There is no evidence to support the claim at alpha = 0.08

3 0

3 years ago

You have a standard deck of cards. The deck has 52 total cards and contains 4 suits: hearts, clubs, diamonds, and spades. Each s

Readme [11.4K]

Answer:

1) ¼

2) yes

Step-by-step explanation:

1) P(A) = 13/52 = 1/4

P(B) = 4/52 = 1/13

P(A^B) = 1/52

P(A|B) = (1/52) ÷ (1/13) = 1/4

Since P(A|B) = P(A), they are independent

5 0

3 years ago

Finn can type 105 words in 3 minutes

notsponge [240]

Answer:

you have to divide 105 by 3

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

Easy question!(exponents) Plz help!

NeTakaya

X=-2/5

Steps:
6^x/3 +2 = 6^-14x/3
x/3+2 = -14x/3.
x +6 = -14x (multiply both sides by 3)
x = -14x - 6 (Substract 6 from both sides)
x + 14x = -6 (add 14x to both sides)
15x = -6 (collect like terms)
x = -2/5 (divide both sides by 15)

4 0

3 years ago