Gunjan  Khaitan

Gunjan Khaitan

1622712513

Population And Sample In Statistics Example | Population vs Sample In Statistics

In this video, Population vs Sample in Statistics, we will first answer the question what is population and sample. We will then take a look at the difference between population and sample along with Population And Sample In Statistics Examples. Finally, we will see how to collect data from population and sample.

  • 00:00 What is Population
  • 02:38 What is a Sample
  • 03:48 Difference betweer Population and Sample
  • 04:48 How to collect data from a population
  • 06:38 How to collect data from a sample

#developer

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Population And Sample In Statistics Example | Population vs Sample In Statistics
Autumn  Blick

Autumn Blick

1598839687

How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

  • Performance: It delivers optimal performance.
  • Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
  • UI design: React Native enables you to design simple and responsive UI for your mobile app.
  • 3rd party plugins: This framework supports 3rd party plugins.
  • Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

  • Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
  • Near-native user experience: React Native provides several native components, and these are platform agnostic.
  • The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

#android app #frontend #ios app #mobile app development #benefits of react native #is react native good for mobile app development #native vs #pros and cons of react native #react mobile development #react native development #react native experience #react native framework #react native ios vs android #react native pros and cons #react native vs android #react native vs native #react native vs native performance #react vs native #why react native #why use react native

Gunjan  Khaitan

Gunjan Khaitan

1622712513

Population And Sample In Statistics Example | Population vs Sample In Statistics

In this video, Population vs Sample in Statistics, we will first answer the question what is population and sample. We will then take a look at the difference between population and sample along with Population And Sample In Statistics Examples. Finally, we will see how to collect data from population and sample.

  • 00:00 What is Population
  • 02:38 What is a Sample
  • 03:48 Difference betweer Population and Sample
  • 04:48 How to collect data from a population
  • 06:38 How to collect data from a sample

#developer

How is Sample Size Related to Standard Error, Power, Confidence Level, and Effect Size?

When conducting statistical analysis, especially during experimental design, one practical issue that one cannot avoid is to determine the sample size for the experiment. For example, when designing the layout of a web page, we want to know whether increasing the size of the click button will increase the click-through probability. In this case, AB testing is an experimental method that is commonly used to solve this problem.

Moving to the details of this experiment, you will first decide how many users I will need to assign to the experiment group, and how many we need for the control group. The sample size is closely related to four variables, standard error of the sample, statistical power, confidence level, and the effect size of this experiment.

In this article, we will demonstrate their relationships with the sample size by graphs. Specifically, we will discuss different scenarios with one-tail hypothesis testing.

Standard Error and Sample Size

The standard error of a statistic corresponds with the standard deviation of a parameter. Since it is nearly impossible to know the population distribution in most cases, we can estimate the standard deviation of a parameter by calculating the standard error of a sampling distribution. The standard error measures the dispersion of the distribution. As the sample size gets larger, the dispersion gets smaller, and the mean of the distribution is closer to the population mean (Central Limit Theory). Thus, the sample size is negatively correlated with the standard error of a sample. The graph below shows how distributions shape differently with different sample sizes

#statistics #statistical-power #statistical-analysis #data-science #sample-size

PWA vs Native App: Which Is Better Option In 2021?

Every year, the world is expanding with the launch of new smartphones and other gadgets available in the market. According to Statista, more than 50% of the population will be using smartphones by the end of 2021.

Hence, businesses worldwide have understood the importance of smartphones and are joining the mobile industry by launching native apps.

Apart from native apps, progressive web apps is another technology that is gaining a lot of attention among businesses. Moreover, various leading companies worldwide have openly accepted PWA and built progressive web apps.

Now, the question arises, how is PWA different from the native apps? Read More

#pwa vs native #pwa vs native app #progressive web app vs native #progressive web app vs native app #pwa vs native app performance

Understanding p-test, Characteristics, and Calculation With Example

The p-value is one way of hypothesis testing. A p-test is a statistical method to test the validity of a commonly accepted claim about a

#statistics #statistical-analysis #data-science #example #characteristics #testing