Helppp please I need this for tomorrow !!

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

6 0

Option C:

The smith movie made the most at the box office during second weekend.

Solution:

Data in the given image:

Green color represents weekend 1.

Orange color represents weekend 2.

Blue color represents weekend 3.

To find which movie made the most at the box office during second weekend.

Look at the graph in the orange color only.

The smith movie has the highest collection which shown in the figure.

Option C is the correct answer.

The smith movie made the most at the box office during second weekend.

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3 years ago

Read 2 more answers

The length of time to complete a door assembly on an automobile factory assembly line is normally distributed with a mean of 6.7

hram777 [196]

We need to work out the z-value of each question to work out the probability

Question a)

We have
X = 5 minutes
The mean, μ = 6.7 minutes
Standard deviation, σ = 2.2 minutes
z-score = (X - μ) / σ = (5 - 6.7) / 2.2 = -0.77

We want to find the probability of z < -0.77 so we read the z-table for the value of z on the left of -0.77 we have the probability P(z< -0.77) = 0.2206

The table is attached in picture 1 below

The probability of assembly time less than 5 minutes is 0.2206 = 22.06%

Question b)

z-score = (10-5) / 2.2 = 2.27

Reading the z-table for P(z<2.27) = 0.9884
The table reading is shown in the second picture below

The probability the assembly time will be less than 10 minutes is 0.9884

We can use this information to find the probability of the assembly time will be more than 10 minutes = 1 - 0.9884 = 0.0116 = 1.16%

Question c)

The value of z between 5 minutes and 10 minutes is

P(-0.77<z<2.27) = P(z<2.27) - P(z< -0.77)
P(-0.77<z<2.27) = 0.9884 - 0.2206 = 0.7678 = 76.78%