4 years ago

What answer would you choose in this case the 1 2 3 or 4

1 answer:

6 0

The Answer Is B.

To Find The Mean, You Add Up Every Number And Divide By How Many Numbers There Were.

136 + 145 + 123 + 140 + 126 = 670

670 Divided By 5 = 134

The Mean For The 4 Weeks Was 136.
The Mean For The 5 Weeks Was 134.

The Mean Decreased By 2. Your Answer Is B.

You might be interested in

Help me on this please

Solnce55 [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Alonzo went to a baseball game. The game started at 10:50 AM, and it was 3 hours 27 minutes long. When did the game end? PLEASE

sattari [20]

The answer is 2:17pm

8 0

3 years ago

Read 2 more answers

Consider an urn containing 8 white balls, 7 red balls and 5 black balls.

weqwewe [10]

Answer + Step-by-step explanation:

1) The probability of getting 2 white balls is equal to:

$=\frac{8}{20} \times \frac{7}{19}\\\\= 0.147368421053$

2) the probability of getting 2 white balls is equal to:

$=C^{2}_{5}\times (\frac{8}{20} \times \frac{7}{19}) \times (\frac{12}{18} \times \frac{11}{17} \times \frac{10}{16})\\=0.397316821465$

3) The probability of getting at least 72 white balls is:

$=C^{72}_{150}\times \left( \frac{8}{20} \right)^{72} \times \left( \frac{7}{20} \right)^{78} +C^{73}_{150}\times \left( \frac{8}{20} \right)^{73} \times \left( \frac{7}{20} \right)^{77} + \cdots +C^{149}_{150}\times \left( \frac{8}{20} \right)^{149} \times \left( \frac{7}{20} \right)^{1} +\left( \frac{8}{20} \right)^{150}$