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Y_Kistochka [10]

2 years ago

12

During a study that lasted 41 days, a flock of chickens was fed 50.43 kg of food. What was the average daily rate at which the f

lock was fed?

1 answer:

Eduardwww [97]2 years ago

7 0

1.23 kg of food per day

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In a pizza takeout restaurant, the following probability distribution was obtained for the number of toppings ordered on a large

Elis [28]

Answer:

The random variable (number of toppings ordered on a large pizza) has a mean of 1.14 and a standard deviation of 1.04.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>The probability distribution is:</em>

<em>x P(x) </em>

<em> 0 0.30 </em>

<em>1 0.40 </em>

<em>2 0.20 </em>

<em>3 0.06 </em>

<em>4 0.04</em>

The mean can be calculated as:

$M=\sum p_iX_i=0.3\cdot 0+0.4\cdot 1+0.2\cdot 2+0.06\cdot 3+0.04\cdot 4\\\\M=0+0.4+0.4+0.18+0.16\\\\M=1.14$

(pi is the probability of each class, Xi is the number of topping in each class)

The standard deviation is calculated as:

$s=\sqrt{\sum p_i(X_i-M)^2}\\\\s=\sqrt{0.3(0-1.14)^2+0.4(1-1.14)^2+0.2(2-1.14)^2+0.06(3-1.14)^2+0.04(4-1.14)^2}\\\\s=\sqrt{0.3(-1.14)^2+0.4(-0.14)^2+0.2(0.86)^2+0.06(1.86)^2+0.04(2.86)^2}\\\\ s=\sqrt{0.3(1.2996)+0.4(0.0196)+0.2(0.7396)+0.06(3.4596)+0.04(8.1796)}\\\\s=\sqrt{0.3899+0.0078+0.1479+0.2076+0.3272}\\\\ s=\sqrt{ 1.0804 }\\\\s\approx 1.04$

3 0

2 years ago

Help me on this??? Will mark as Brainiest

Leviafan [203]

Answer:11 and 12 is g and g and answer 13 is 5.36487494991

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

ocabulary What operations have inverse relationships? Select all that apply. A. Addition and subtraction B. Addition and multipl

marin [14]

Answer:

it can be a or d

Step-by-step explanation:

8 0

3 years ago

En la granja hay 509 puercos anota el número antecesor y el número sucesor de la cantidad.

nasty-shy [4]

Answer: que

Step-by-step explanation:

5 0

3 years ago

Best explained and correct answer gets brainliest.

topjm [15]

U = (-2,3)

V = (3,0)

midpoint of UV

= ( (3-2)/2 , (3+0)/2 )

= ( 1/2 , 3/2)

= ( 0.5 , 1.5)

X = (0.5 , 1.5) [from fig]

midpoint of UV = X

W= (-2,-3)

V =( 3.0)

Y = ( (-2+3)/2 , (-3+0)/2 )

= (0.5 , - 1.5)

Y = ( 0.5 , -1.5) [ from fig ]

Y is the midpoint of WV

by midpoint theorem ,

UW = 2( XY )

6 0

2 years ago