HELPPPPPPPPPPPPPPPPPPPPPPP I WIL GIVE BRAINLIEST ANSWER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Umnica [9.8K]3 years ago

7 0

Answer : A

The word "increased" indicates a plus sign. The word "is equal" helps show us show that something is = to 15

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A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.53, 0.40

SpyIntel [72]

The mean of the probability distribution is given by the expected value given by

$E(x)=\sum xp(x) \\ \\ =0(0.53)+1(0.40)+2(0.05)+3(0.02) \\ \\ =0.40+0.10+0.06=0.56$

The variance of the probability distribution is given by

$Var(x)=(x-\bar{x})^2p(x) \\ \\ =(0-0.56)^2(0.53)+(1-0.56)^2(0.40)+(2-0.56)^2(0.05)\\+(3-0.56)^2(0.02) \\ \\ =(-0.56)^2(0.53)+0.44^2(0.40)+1.44^2(0.05)+2.44^2(0.02) \\ \\ =0.3136(0.53)+0.1936(0.40)+2.0736(0.05)+5.9536(0.02) \\ \\ =0.166208+0.07744+0.10368+0.119072=0.4664$

The standard deviation is given by

$\sigma(x)=\sqrt{Var(x)} \\ \\ =\sqrt{0.4664}=0.683$

5 0

2 years ago

ANSWER FAST AND CORRECTLY AND I'LL MARK BRAINLIEST!!!!!!!

juin [17]

Answer: Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama Joe Mama

Step-by-step explanation:

3 0

2 years ago

Roberta uses 5 beads for every 3 inches of string while making necklaces which graph best represents the ratio of necklace strin

mariarad [96]

5 beads are used for every 3 inches, that makes 5/3 beads per inch.

Thus that can be modeled by the graph y=x*5/3 where x is the number of inches and y is the number of beads.

8 0

2 years ago

An engineer on the ground is looking at the top of a building. The angle of elevation to the top of a building is 38°. The engin

fomenos

Let the distance of the engineer from the base of the building be x, then
tan 38 = 300/x
x = 300/tan 38 = 300/0.7813 = 383.98

Therefore, the distance from the engineer to the base of the building to the nearest whole foot is 384 feet.

8 0

3 years ago

the sum of the interior angles of a regular polygon is 180(n-2) degrees. how many sides does the polygon have?

dybincka [34]

Answer:

Step-by-step explanation:

Any regular polygon has a sum of 180(n-2), where n is the number of sides. You can place n as the number of sides to figure out the total amount of degrees.

5 0

2 years ago