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Allisa [31]
3 years ago
10

Help me.................

Mathematics
1 answer:
stiv31 [10]3 years ago
3 0
28 band are 6 graders
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The number of defective components produced by a certain process in one day has a Poisson
kakasveta [241]

Answer:

Step-by-step explanation:

Let X be the no of defective components produced by a certain process in one day

X is Poisson with parameter = 20

Y = no of components that can be repaired

Since each component to be repaired is independent of the other Y is Binomial with p =0.60

a) P(x=15) = 0.051649

b) P(Y = 10)= Binomial prob (15,0.6) for y =10

= 0.1859

Here no of repairables X is binomial.

c) Prob for 15 produced and 10 repairable = product of a and b

= 0.009603

6 0
4 years ago
Which expression can you substitute
valina [46]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:(30/19,2/19)

Equation Form: x=30/19, y=2/19

7 0
3 years ago
What is 1 1/4 - 5/6 PLEASE HELP I WILL GIVE LITERALLY ALL MY BRAND LIST HELPP
solniwko [45]

Answer:

-7/12

Step-by-step explanation:

I used my calculator

6 0
3 years ago
Read 2 more answers
Juwan has a third quiz in math on Friday. His two previous quiz grades were 85 and 72. What must he make on the third quiz for h
VLD [36.1K]

Answer:

x = 107

Step-by-step explanation:

Given

Scores = 85\ and\ 72

Average = 88

Required

Determine the third score

Average is calculated using;

Average = \frac{\sum x}{n}

In this case:

n = 3

Average = \frac{\sum x}{n}

Let the third score be x; So:

Average = \frac{85 + 72 + x}{3}

Substitute 88 for Average

88 = \frac{85 + 72 + x}{3}

88 = \frac{157 + x}{3}

Multiply through by 3

3 * 88 = \frac{157 + x}{3} * 3

264 = 157 + x

x = 264 - 157

x = 107

4 0
4 years ago
1. (12 points) The tennis team at Taft High School has 8 players, and the tennis team at McKinley High School has 7 players. Reb
Marta_Voda [28]

Complete Question

1. (12 points) The tennis team at Taft High School has 8 players, and the tennis team at McKinley High School has 7 players. Rebecca is on the team at Taft, and her sister Leah is on the team at McKinley. The two teams are going to play a tournament with 4 rounds. In each round, one player from Taft will play a match against one player from McKinley. Each player can play in at most one match. A schedule for the tournament consists of an ordered list of the names of the players from each school who will play in each of the four rounds. The schedule does not include the results of each match.

(a) How many schedules are there?

(b) How many schedules include neither sister?

Answer:

a

   N  =  1,411,200

b

  M  =  302, 400

Step-by-step explanation:

From the question we are told that

   The  number of players in Taft High School is t =  8

    The  number of players in McKinley High School  is k = 7

   The number of rounds is  n  =  4

   The highest number of match each player can play is  w =  1

   

Generally the total number of schedules is  

      N  = ^tP_4 * ^k P_4

      N  = ^8P_4 * ^7 P_4

=>   N  =  \frac{8!}{(8-4)!} * \frac{7!}{(7-4)!}

=>   N  =  \frac{8!}{4!} * \frac{7!}{3!}

=>  N  =  \frac{8*7 *6*5*4*3*2*1}{4*3*2*1} * \frac{7*6*5*4*3*2*1}{3*2*1}

=>  N  =  1,411,200

Generally the  number of schedules that include neither of the sisters is  mathematically represented as

        M= \ ^{t-1}P_4 *\ ^ {k-1} P_4

        M= \ ^{8-1}P_4 *\ ^ {7-1} P_4

=>    M= \ ^{7}P_4 *\ ^ {6} P_4

=>     M  =  \frac{7!}{(7-4)!} * \frac{6!}{(6-4)!}

=>     M  =  \frac{7!}{3!} * \frac{6!}{2!}

=>     M  =  \frac{7 *6*5*4*3*2*1}{3*2*1} * \frac{6*5*4*3*2*1}{2*1}

=>      M  =  302, 400

8 0
3 years ago
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