What is the term used to describe participants starting a study but then leaving it? o abandonment o drop outs o margin of error O mortality

You text file begins with the following rows. The pattern is a description of the item to be repaired, its color, and the issue. bike, red, flat tire bike, blue, broken chain skate, blue, loose wheel mitt, red, torn lace Your program starts with the following lines. import csv aFile = open("data\broken.txt","r") aReader = csv.reader(aFile) countRed = 0 for item in aReader: When you write code to count the number of times red is the color, what is the index of "red"?

Discuss thefactors that are vital to achieve clarity in themessage?

Which feature in Access is used to control data entry into database tables to help ensure consistency and reduce errors?O subroutines
O search
O forms
O queries

Which technology is suitable to cover the whole city for internet?​

#Imagine you're writing a program to check if a person is #available at a certain time.

#

#To do this, you want to write a function called

#check_availability. check_availability will have two

#parameters: a list of instances of the Meeting class, and

#proposed_time, a particular date and time.

#

#check_availability should return True (meaning the person

#is available) if there are no instances of Meeting that

#conflict with the proposed_time. In other words, it should

#return False if proposed_time is between the start_time and

#end_time for any meeting in the list of meetings.

#

#The Meeting class is defined below. It has two attributes:

#start_time and end_time. start_time is an instance of the

#datetime class showing when the meeting starts, and

#end_time is an instance of the datetime class indicating

#when the meeting ends.

#

#Hint: Instances of the datetime have at least six

#attributes: year, month, day, hour, minute, and second.

#

#Hint 2: Comparison operators work with instances of the

#datetime class. time_1 < time_2 will be True if time_1 is

#earlier than time_2, and False otherwise.

#

#You should not assume that the list is sorted.

#Here is our definition of the Meeting class:

from datetime import datetime

class Meeting:

def __init__(self, start_time, end_time):

self.start_time = start_time

self.end_time = end_time

#Write your function here!



#Below are some lines of code that will test your function.

#You can change the value of the variable(s) to test your

#function with different inputs.

#

#If your function works correctly, this will originally

#print: True, then False

meetings = [Meeting(datetime(2018, 8, 1, 9, 0, 0), datetime(2018, 8, 1, 11, 0, 0)),

Meeting(datetime(2018, 8, 1, 15, 0, 0), datetime(2018, 8, 1, 16, 0, 0)),

Meeting(datetime(2018, 8, 2, 9, 0, 0), datetime(2018, 8, 2, 10, 0, 0))]

print(check_availability(meetings, datetime(2018, 8, 1, 12, 0, 0)))

print(check_availability(meetings, datetime(2018, 8, 1, 10, 0, 0)))

Most new information systems must communicate with other, existing systems, so the design of the method and details of these communication links must be precisely defined. These are called ____.