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2 years ago

The options in the drop downs are: the margin of error will decrease / the margin of error will increase

Mathematics

1 answer:

shtirl [24]2 years ago

8 0

Answer:

mark me brainliest come to my account i got you 100 B i swear all i do is giveaway B but u gotta give it a thanks.

Step-by-step explanation:

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21 times 9 equals 9 times 21 what is the property

Reil [10]

Commutative property....

5 0

3 years ago

Angle S and angle T form a linear pair if measurement of angle S equals 5X +9 and measurement of angle T equals 3X +11 find the

vampirchik [111]

Linear pair angles have too add to 180, so

5x+9+3x+11=180
8x+20=180
8x=160
x=20

so angle S is 5*20+9 = 109
angle T is 3*20+11 = 71

6 0

3 years ago

What is 4 1/4 * 4/34 =

Natali5045456 [20]

4 1/4 = 16/4

17/4 : 4/34 =

17/4 * 4/34 =

1/2

5 0

3 years ago

a diagonal of a convex polygon is a line segment whose end points are the consecutive vertices of the polygon.say true or false

AysviL [449]

Answer:

Step-by-step explanation:

False. Diagonals of a convex polygon is a line segment that joints two non adjacent vertices.

7 0

3 years ago

a statistics professor finds that when he schedules an office hour at the 10:30a, time slot, an average of three students arrive

Veseljchak [2.6K]

Answer:

The probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

Step-by-step explanation:

Let X = number of students arriving at the 10:30 AM time slot.

The average number of students arriving at the 10:30 AM time slot is, λ = 3.

A random variable representing the occurrence of events in a fixed interval of time is known as Poisson random variables. For example, the number of customers visiting the bank in an hour or the number of typographical error is a book every 10 pages.

The random variable X is also a Poisson random variable because it represents the fixed number of students arriving at the 10:30 AM time slot.

The random variable X follows a Poisson distribution with parameter λ = 3.

The probability mass function of X is given by:

$P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,3...,\ \lambda>0$

Compute the probability of X = 2 as follows:

$P(X=2)=\frac{e^{-3}3^{2}}{2!}=\frac{0.0498\times 9}{2}=0.2241$

Thus, the probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

6 0

3 years ago

Read 2 more answers