The correct answer is (d) **Harmonic mean**. It is the best method for finding the average speed of a journey.

The IF function is one of the most popular functions in Excel, and it **allows you to make logical comparisons between a value and what you expect**. So an IF statement can have two results. The first result is if your comparison is True, the second if your comparison is False.

Generally, **you write an IF statement with text using either "equal to" or "not equal to" operator**, as demonstrated in a couple of IF examples that follow.

Mean

Measures of central tendency **help you find the middle, or the average, of a data set**. The 3 most common measures of central tendency are the mean, median and mode. The mode is the most frequent value. The median is the middle number in an ordered data set.

**The mean** is the most frequently used measure of central tendency because it uses all values in the data set to give you an average.

**The mean of data is obtained by adding all the values and dividing by the number of observations**. Often, the mean is modelled as a balance point. This value is useful for predicting future results when there are no extreme values in the data set.

**The IF Function has 3 arguments**: Logical test. This is where we can compare data or see if a condition is met. Value if true.

The empirical relationship between the three measures of central tendency is **2 Mean = 3 Median – Mode**.

**In Microsoft Excel, the mean can be calculated by using one of the following functions:**

- AVERAGE- returns an average of numbers.
- AVERAGEA - returns an average of cells with any data (numbers, Boolean and text values).
- AVERAGEIF - finds an average of numbers based on a single criterion.

Median is the measure of central tendency.**Examples of Median**

- Choosing the appropriate movie genre.
- Grouping Data.
- Explicating the Poverty Line.
- Buying a property.
- Home budget.
- Business.
- Median Salary.

The correct answer is (d) **Harmonic mean**. It is the best method for finding the average speed of a journey.

We begin with the most commonly used measure of central tendency, the mean. Excel Function: The mean is calculated in Excel using the **function AVERAGE**. Example 1: The mean of S = {5, 2, -1, 3, 7, 5, 0, 2} is (2 + 5 – 1 + 3 + 7 + 5 + 0 + 2) / 8 = 2.875.

Balance of Payments Stability. The main government aims for the economy are **full employment, price stability, economic growth, redistribution of income and stability of balance of payments**. A government can operate a range of policy measures to achieve these aims and it is judged on their success or otherwise.

**A tool can be any item that is used to achieve a goal.** **Equipment usually denotes a set of tools that are used to achieve a specific objective**. A tool can be non-mechanical as well. However, when one says equipment, there is a certain mechanical aspect to it that cannot be ignored.

**Advantages of Test:**

- (i) Proper Assessment: Tests provide a basis for finding out the suitability of candidates for various jobs.
- (ii) Objective Assessment: s.
- (iii) Uniform Basis:
- (iv) Selection of Better Persons:
- (v) Labour Turnover Reduced:
- (i) Unreliable:
- (ii) Wrong Use:
- (iii) Fear of Exposure:

**The part of a whole** is known as Fraction. For example if a watermelon is cut into 4 parts then each part will be a fraction of the whole watermelon. Numerator: The part which is written above the horizontal line is called as numerator.

Cost Accounting Helps **Businesses** Accurately Ascertain Costs. Cost accounting enables management to accurately account for costs by factoring in both variable and fixed costs. It assists in the cost assessment of all facets of a business, including the cost of processes, products, projects and contracts.

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Charles Darwin's theory of evolution states that **evolution happens by natural selection**. Individuals in a species show variation in physical characteristics. This variation is because of differences in their genes^{?}.

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Dated : 08-Jun-2022

Category : Education