8:17 PM Wed May 24ListenAdrianBethIn a ski jumping competition, the athletes each perform 4 jumps. Thedistance, in feet, for each jump is shown.BethJorgeDeniseAdrianDeniseO Jorgeprimaverahs.strongmind.com71.5●●●Jump 1 Jump 2 Jump 3 Jump 470.571.069.074.073.069.569.076.575.07 01 2071.571.074.0Which athlete had the largest range in distance jumped?GeoGebra Graphing Calculator73.573.072.035%Next ▶

Given:We have 4 individual jumps range for each athlets.To find largest range in distance jumped we…

Answered: In a ski jumping competition, the…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter1: Variables, Expressions, And Integers

Section1.5: Adding Integers

Problem 45E

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Falling Object An object with negligible air resistance is dropped from the top of the Willis Tower in Chicago at a height of 1451 feet. During the first second of fall, the object falls 16 feet; during the second second, it falls 48 feet; during the third second, it falls 80 feet; during the fourth second, it falls 112 feet. Assuming this pattern continues, how many feet does the object fall in the first 7 seconds after it is dropped?
When the light turns yellow, should you stop or go through it? An article defines the “indecision zone” as the period when a vehicle is between 2.5 and 5.5 seconds away from an intersection. At the intersection of Route 7 and North Shrewsbury in Clarendon, Vermont, 154 vehicles were observed to encounter a yellow light in the indecision zone, and 23 of them ran the red light. At the intersection of Route 62 and Paine Turnpike in Berlin, Vermont, 183 vehicles entered the intersection in the indecision zone, and 20 ran the red light. Can you conclude that the proportion of red-light runners differs between the two intersections? Find the P-value and state a conclusion. Round the answer to four decimal places. The P-value is 0.4472 0.4472 Incorrect . We can Incorrectconclude that the proportion of red-light runners differs between the two intersections
Trucks are required to pass through a weighing station so that they can be checked for weight violations. Trucks arrive at the station at the rate of 40 an hour between 7:00 p.m. and 9:00 p.m. Currently two inspectors are on duty during those hours, each of whom can inspect 25 trucks an hour.a. How many trucks would you expect to see at the weighing station, including those being inspected? b. If a truck was just arriving at the station, about how many minutes could the driver expect to be at the station? c. What is the probability that both inspectors would be busy at the same time? f. What is the maximum line length for a probability of 0.97?
Hospitals typically require backup generators to provide electricity in the event of a power outage. Assume that emergency backup generators fail 41% of the times when they are needed. A hospital has two backup generators so that power is available if one of them fails during a power outage. Complete parts (a) and (b) below.
Why do zebras have stripes? One hypothesis is that stripes help keep biting flies away. Trinity wants to test this hypothesis with an experiment. She will use 15 horses as the subjects in her experiment, and assign them to 3 treatments, as follows: 5 horses will wear a fabric coat that is printed with zebra stripes, as shown above 5 horses will wear nothing 5 horses will wear a fabric coat that is printed with a solid grey colour Trinity will record a video of each horse for 1 hour. She will use the video to determine the number of biting flies that land on the horse's back. a) What types of experimental group do each of (i), (ii), and (iii) represent? Choose from: Main experimental treatment group Classical control Positive control Negative control b) Why is it important for Trinity to include group (iii) in her study? Provide a brief explanation. Hint: you can describe potential scenarios for results to help explain why group (iii) is needed. c) Can you suggest ONE potential…
You are an epidemiologist and have been alerted to an outbreak of gastrointestinal disease. Nearly all ill persons reported attending the pancake breakfast. You interview the 157 people who attended the pancake breakfast. 102 people reported eating pancakes; 37 of those reported illness. Of those who did not eat pancakes, 24 reported illness. Calculate the attack rate for those who did not eat pancakes. Round to the nearest whole number and do not include any symbols.
You are an epidemiologist and have been alerted to an outbreak of gastrointestinal disease. Nearly all ill persons reported attending the pancake breakfast. You interview the 157 people who attended the pancake breakfast. 102 people reported eating pancakes; 37 of those reported illness. Of those who did not eat pancakes, 24 reported illness. Calculate the attack rate for those who ate pancakes. Round to the nearest whole number and do not include any symbols.
Given P(E) = 0.93, what is P(E')?
In a lumberjack competition, a contestant is blindfolded and spun around 9 times. The blindfolded contestant then tries to hit the target point in the middle of a horizontal log with an axe. The contestant receives 15 points if his hit is within 3 cm of the target, 10 points if his hit is between 3 cm and 10 cm of the target, 5 points if his hit is between 10 cm and 20 cm of the target, and Zero points if his hit is 20 cm or more away from the target. Let Y record the position of the hit, so that Y=y>0 corresponds to missing the target point to the right by y cm Y=-y<0 corresponds to missing the target to the left by y cm. Assume that Y is normally distributed with mean mu=0 and variance 100 cm2. Find the expected number of points that the contestant wins.
Over the period of a month, you trap and tag 15 deer in a forest, and mark them with tags. You set up motion sensitive remote cameras up at varoius locations in the forest. 1 month later, you collect all the cameras and review the pictures. You record the results and note that the cameras took pictures of 4 tagged deer and 7 untagged deer. What would be the total population of deer in the forest reserve ?

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