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Pachacha [2.7K]
3 years ago
15

PLEASE Help this is due today

Mathematics
2 answers:
andrey2020 [161]3 years ago
7 0
B. 3
—-
11 775 x b- 6

Yuh!!
Ganezh [65]3 years ago
3 0
I’m pretty sure the correct answer is B
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Solve for the value of c. ​
Ipatiy [6.2K]

Answer:

2c-4+5c+3 = 90

7c-1 = 90

7c = 91

c = 13

7 0
2 years ago
Please Help I will give brainliest<br><br> https://brainly.com/question/16655105
ICE Princess25 [194]
Where is the question
7 0
3 years ago
An article in Knee Surgery, Sports Traumatology, Arthroscopy, "Arthroscopic meniscal repair with an absorbable screw: results an
igomit [66]

Answer:

Mean = 1.57

Variance=0.31

Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

1) Both surgeries are successful (X=2).

P(e_1)=0.90*0.67=0.603

2) Left knee unsuccessful and right knee successful (X=1).

P(e_2)=(1-0.9)*0.67=0.1*0.67=0.067

3) Right knee unsuccessful and left knee successful (X=1).

P(e_3)=0.90*(1-0.67)=0.9*0.33=0.297

4) Both surgeries are unsuccessful (X=0).

P(e_4)=(1-0.90)*(1-0.67)=0.1*0.33=0.033

Then, the mean can be calculated as the expected value:

M=\sum p_iX_i=0.603*2+0.067*1+0.297*1+0.033*0\\\\M=1.206+0.067+0.297+0\\\\M=1.57

The variance can be calculated as:

V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111

3 0
3 years ago
Can someone please help with this ?
olga nikolaevna [1]

Answer:1/32

Step-by-step explanation:

8 0
3 years ago
First to answer CORRECTLY gets brainliest! (Btw u dont needa hear it...bc it just reads what you read to you lol)
kirill [66]

Answer:

I think the answer is B

sorry if not

Step-by-step explanation:

4 0
3 years ago
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